diff --git a/yarn.lock b/yarn.lock
index 290cd923..aca3b64a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1044,7 +1044,76 @@
     exec-sh "^0.3.2"
     minimist "^1.2.0"
 
-"@ethersproject/abi@5.0.12", "@ethersproject/abi@^5.0.10":
+"@ethereumjs/block@^3.5.0", "@ethereumjs/block@^3.6.0", "@ethereumjs/block@^3.6.1":
+  version "3.6.1"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/block/-/block-3.6.1.tgz#50574d3e993ae247dcfe2abbdb91d2a4a22accb9"
+  integrity sha512-o5d/zpGl4SdVfdTfrsq9ZgYMXddc0ucKMiFW5OphBCX+ep4xzYnSjboFcZXT2V/tcSBr84VrKWWp21CGVb3DGw==
+  dependencies:
+    "@ethereumjs/common" "^2.6.1"
+    "@ethereumjs/tx" "^3.5.0"
+    ethereumjs-util "^7.1.4"
+    merkle-patricia-tree "^4.2.3"
+
+"@ethereumjs/blockchain@^5.5.0", "@ethereumjs/blockchain@^5.5.1":
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/blockchain/-/blockchain-5.5.1.tgz#60f1f50592c06cc47e1704800b88b7d32f609742"
+  integrity sha512-JS2jeKxl3tlaa5oXrZ8mGoVBCz6YqsGG350XVNtHAtNZXKk7pU3rH4xzF2ru42fksMMqzFLzKh9l4EQzmNWDqA==
+  dependencies:
+    "@ethereumjs/block" "^3.6.0"
+    "@ethereumjs/common" "^2.6.0"
+    "@ethereumjs/ethash" "^1.1.0"
+    debug "^2.2.0"
+    ethereumjs-util "^7.1.3"
+    level-mem "^5.0.1"
+    lru-cache "^5.1.1"
+    semaphore-async-await "^1.5.1"
+
+"@ethereumjs/common@^2.6.0", "@ethereumjs/common@^2.6.1", "@ethereumjs/common@^2.6.2":
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/common/-/common-2.6.2.tgz#eb006c9329c75c80f634f340dc1719a5258244df"
+  integrity sha512-vDwye5v0SVeuDky4MtKsu+ogkH2oFUV8pBKzH/eNBzT8oI91pKa8WyzDuYuxOQsgNgv5R34LfFDh2aaw3H4HbQ==
+  dependencies:
+    crc-32 "^1.2.0"
+    ethereumjs-util "^7.1.4"
+
+"@ethereumjs/ethash@^1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/ethash/-/ethash-1.1.0.tgz#7c5918ffcaa9cb9c1dc7d12f77ef038c11fb83fb"
+  integrity sha512-/U7UOKW6BzpA+Vt+kISAoeDie1vAvY4Zy2KF5JJb+So7+1yKmJeJEHOGSnQIj330e9Zyl3L5Nae6VZyh2TJnAA==
+  dependencies:
+    "@ethereumjs/block" "^3.5.0"
+    "@types/levelup" "^4.3.0"
+    buffer-xor "^2.0.1"
+    ethereumjs-util "^7.1.1"
+    miller-rabin "^4.0.0"
+
+"@ethereumjs/tx@^3.4.0", "@ethereumjs/tx@^3.5.0":
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-3.5.0.tgz#783b0aeb08518b9991b23f5155763bbaf930a037"
+  integrity sha512-/+ZNbnJhQhXC83Xuvy6I9k4jT5sXiV0tMR9C+AzSSpcCV64+NB8dTE1m3x98RYMqb8+TLYWA+HML4F5lfXTlJw==
+  dependencies:
+    "@ethereumjs/common" "^2.6.1"
+    ethereumjs-util "^7.1.4"
+
+"@ethereumjs/vm@^5.6.0":
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/vm/-/vm-5.7.1.tgz#3bf757fbad0081838ccb4f22003cd73319ab3616"
+  integrity sha512-NiFm5FMaeDGZ9ojBL+Y9Y/xhW6S4Fgez+zPBM402T5kLsfeAR9mrRVckYhvkGVJ6FMwsY820CLjYP5OVwMjLTg==
+  dependencies:
+    "@ethereumjs/block" "^3.6.1"
+    "@ethereumjs/blockchain" "^5.5.1"
+    "@ethereumjs/common" "^2.6.2"
+    "@ethereumjs/tx" "^3.5.0"
+    async-eventemitter "^0.2.4"
+    core-js-pure "^3.0.1"
+    debug "^4.3.3"
+    ethereumjs-util "^7.1.4"
+    functional-red-black-tree "^1.0.1"
+    mcl-wasm "^0.7.1"
+    merkle-patricia-tree "^4.2.3"
+    rustbn.js "~0.2.0"
+
+"@ethersproject/abi@5.0.12":
   version "5.0.12"
   resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.0.12.tgz#9aebe6aedc05ce45bb6c41b06d80bd195b7de77c"
   integrity sha512-Ujr/3bwyYYjXLDQfebeiiTuvOw9XtUKM8av6YkoBeMXyGQM9GkjrQlwJMNwGTmqjATH/ZNbRgCh98GjOLiIB1Q==
@@ -1059,6 +1128,21 @@
     "@ethersproject/properties" "^5.0.7"
     "@ethersproject/strings" "^5.0.8"
 
+"@ethersproject/abi@^5.0.10", "@ethersproject/abi@^5.1.2":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.5.0.tgz#fb52820e22e50b854ff15ce1647cc508d6660613"
+  integrity sha512-loW7I4AohP5KycATvc0MgujU6JyCHPqHdeoo9z3Nr9xEiNioxa65ccdm1+fsoJhkuhdRtfcL8cfyGamz2AxZ5w==
+  dependencies:
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/hash" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
 "@ethersproject/abstract-provider@5.0.9", "@ethersproject/abstract-provider@^5.0.8":
   version "5.0.9"
   resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.0.9.tgz#a55410b73e3994842884eb82b1f43e3a9f653eea"
@@ -1072,6 +1156,19 @@
     "@ethersproject/transactions" "^5.0.9"
     "@ethersproject/web" "^5.0.12"
 
+"@ethersproject/abstract-provider@^5.5.0":
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.5.1.tgz#2f1f6e8a3ab7d378d8ad0b5718460f85649710c5"
+  integrity sha512-m+MA/ful6eKbxpr99xUYeRvLkfnlqzrF8SZ46d/xFB1A7ZVknYc/sXJG0RcufF52Qn2jeFj1hhcoQ7IXjNKUqg==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/networks" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/transactions" "^5.5.0"
+    "@ethersproject/web" "^5.5.0"
+
 "@ethersproject/abstract-signer@5.0.13", "@ethersproject/abstract-signer@^5.0.10":
   version "5.0.13"
   resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.0.13.tgz#59b4d0367d6327ec53bc269c6730c44a4a3b043c"
@@ -1083,6 +1180,17 @@
     "@ethersproject/logger" "^5.0.8"
     "@ethersproject/properties" "^5.0.7"
 
+"@ethersproject/abstract-signer@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.5.0.tgz#590ff6693370c60ae376bf1c7ada59eb2a8dd08d"
+  integrity sha512-lj//7r250MXVLKI7sVarXAbZXbv9P50lgmJQGr2/is82EwEb8r7HrxsmMqAjTsztMYy7ohrIhGMIml+Gx4D3mA==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+
 "@ethersproject/address@5.0.10", "@ethersproject/address@^5.0.9":
   version "5.0.10"
   resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.0.10.tgz#2bc69fdff4408e0570471cd19dee577ab06a10d0"
@@ -1094,6 +1202,17 @@
     "@ethersproject/logger" "^5.0.8"
     "@ethersproject/rlp" "^5.0.7"
 
+"@ethersproject/address@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.5.0.tgz#bcc6f576a553f21f3dd7ba17248f81b473c9c78f"
+  integrity sha512-l4Nj0eWlTUh6ro5IbPTgbpT4wRbdH5l8CQf7icF7sb/SI3Nhd9Y9HzhonTSTi6CefI0necIw7LJqQPopPLZyWw==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/rlp" "^5.5.0"
+
 "@ethersproject/base64@5.0.8", "@ethersproject/base64@^5.0.7":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.0.8.tgz#1bc4b4b8c59c1debf972c7164b96c0b8964a20a1"
@@ -1101,6 +1220,13 @@
   dependencies:
     "@ethersproject/bytes" "^5.0.9"
 
+"@ethersproject/base64@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.5.0.tgz#881e8544e47ed976930836986e5eb8fab259c090"
+  integrity sha512-tdayUKhU1ljrlHzEWbStXazDpsx4eg1dBXUSI6+mHlYklOXoXF6lZvw8tnD6oVaWfnMxAgRSKROg3cVKtCcppA==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+
 "@ethersproject/basex@5.0.8", "@ethersproject/basex@^5.0.7":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/basex/-/basex-5.0.8.tgz#6867fad20047aa29fbd4b880f27894ed04cc7bb8"
@@ -1118,6 +1244,15 @@
     "@ethersproject/logger" "^5.0.8"
     bn.js "^4.4.0"
 
+"@ethersproject/bignumber@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bignumber/-/bignumber-5.5.0.tgz#875b143f04a216f4f8b96245bde942d42d279527"
+  integrity sha512-6Xytlwvy6Rn3U3gKEc1vP7nR92frHkv6wtVr95LFR3jREXiCPzdWxKQ1cx4JGQBXxcguAwjA8murlYN2TSiEbg==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    bn.js "^4.11.9"
+
 "@ethersproject/bytes@5.0.10", "@ethersproject/bytes@^5.0.9":
   version "5.0.10"
   resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.0.10.tgz#aa49afe7491ba24ff76fa33d98677351263f9ba4"
@@ -1125,6 +1260,13 @@
   dependencies:
     "@ethersproject/logger" "^5.0.8"
 
+"@ethersproject/bytes@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.5.0.tgz#cb11c526de657e7b45d2e0f0246fb3b9d29a601c"
+  integrity sha512-ABvc7BHWhZU9PNM/tANm/Qx4ostPGadAuQzWTr3doklZOhDlmcBqclrQe/ZXUIj3K8wC28oYeuRa+A37tX9kog==
+  dependencies:
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/constants@5.0.9", "@ethersproject/constants@^5.0.8":
   version "5.0.9"
   resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.0.9.tgz#81ac44c3bf612de63eb1c490b314ea1b932cda9f"
@@ -1132,6 +1274,13 @@
   dependencies:
     "@ethersproject/bignumber" "^5.0.13"
 
+"@ethersproject/constants@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.5.0.tgz#d2a2cd7d94bd1d58377d1d66c4f53c9be4d0a45e"
+  integrity sha512-2MsRRVChkvMWR+GyMGY4N1sAX9Mt3J9KykCsgUFd/1mwS0UH1qw+Bv9k1UJb3X3YJYFco9H20pjSlOIfCG5HYQ==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+
 "@ethersproject/contracts@5.0.11":
   version "5.0.11"
   resolved "https://registry.yarnpkg.com/@ethersproject/contracts/-/contracts-5.0.11.tgz#e6cc57698a05be2329cb2ca3d7e87686f95e438a"
@@ -1161,6 +1310,20 @@
     "@ethersproject/properties" "^5.0.7"
     "@ethersproject/strings" "^5.0.8"
 
+"@ethersproject/hash@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/hash/-/hash-5.5.0.tgz#7cee76d08f88d1873574c849e0207dcb32380cc9"
+  integrity sha512-dnGVpK1WtBjmnp3mUT0PlU2MpapnwWI0PibldQEq1408tQBAbZpPidkWoVVuNMOl/lISO3+4hXZWCL3YV7qzfg==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.5.0"
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
 "@ethersproject/hdnode@5.0.9", "@ethersproject/hdnode@^5.0.8":
   version "5.0.9"
   resolved "https://registry.yarnpkg.com/@ethersproject/hdnode/-/hdnode-5.0.9.tgz#ce65b430d3d3f0cd3c8f9dfaaf376b55881d9dba"
@@ -1206,11 +1369,24 @@
     "@ethersproject/bytes" "^5.0.9"
     js-sha3 "0.5.7"
 
+"@ethersproject/keccak256@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/keccak256/-/keccak256-5.5.0.tgz#e4b1f9d7701da87c564ffe336f86dcee82983492"
+  integrity sha512-5VoFCTjo2rYbBe1l2f4mccaRFN/4VQEYFwwn04aJV2h7qf4ZvI2wFxUE1XOX+snbwCLRzIeikOqtAoPwMza9kg==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    js-sha3 "0.8.0"
+
 "@ethersproject/logger@5.0.9", "@ethersproject/logger@^5.0.8":
   version "5.0.9"
   resolved "https://registry.yarnpkg.com/@ethersproject/logger/-/logger-5.0.9.tgz#0e6a0b3ecc938713016954daf4ac7967467aa763"
   integrity sha512-kV3Uamv3XOH99Xf3kpIG3ZkS7mBNYcLDM00JSDtNgNB4BihuyxpQzIZPRIDmRi+95Z/R1Bb0X2kUNHa/kJoVrw==
 
+"@ethersproject/logger@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/logger/-/logger-5.5.0.tgz#0c2caebeff98e10aefa5aef27d7441c7fd18cf5d"
+  integrity sha512-rIY/6WPm7T8n3qS2vuHTUBPdXHl+rGxWxW5okDfo9J4Z0+gRRZT0msvUdIJkE4/HS29GUMziwGaaKO2bWONBrg==
+
 "@ethersproject/networks@5.0.8", "@ethersproject/networks@^5.0.7":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.0.8.tgz#37e6f8c058f2d540373ea5939056cd3de069132e"
@@ -1218,6 +1394,13 @@
   dependencies:
     "@ethersproject/logger" "^5.0.8"
 
+"@ethersproject/networks@^5.5.0":
+  version "5.5.2"
+  resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.5.2.tgz#784c8b1283cd2a931114ab428dae1bd00c07630b"
+  integrity sha512-NEqPxbGBfy6O3x4ZTISb90SjEDkWYDUbEeIFhJly0F7sZjoQMnj5KYzMSkMkLKZ+1fGpx00EDpHQCy6PrDupkQ==
+  dependencies:
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/pbkdf2@5.0.8", "@ethersproject/pbkdf2@^5.0.7":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/pbkdf2/-/pbkdf2-5.0.8.tgz#06a086b1ac04c75e6846afd6cf6170a49a634411"
@@ -1233,6 +1416,13 @@
   dependencies:
     "@ethersproject/logger" "^5.0.8"
 
+"@ethersproject/properties@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/properties/-/properties-5.5.0.tgz#61f00f2bb83376d2071baab02245f92070c59995"
+  integrity sha512-l3zRQg3JkD8EL3CPjNK5g7kMx4qSwiR60/uk5IVjd3oq1MZR5qUg40CNOoEJoX5wc3DyY5bt9EbMk86C7x0DNA==
+  dependencies:
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/providers@5.0.23":
   version "5.0.23"
   resolved "https://registry.yarnpkg.com/@ethersproject/providers/-/providers-5.0.23.tgz#1e26512303d60bbd557242532fdb5fa3c5d5fb73"
@@ -1274,6 +1464,14 @@
     "@ethersproject/bytes" "^5.0.9"
     "@ethersproject/logger" "^5.0.8"
 
+"@ethersproject/rlp@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/rlp/-/rlp-5.5.0.tgz#530f4f608f9ca9d4f89c24ab95db58ab56ab99a0"
+  integrity sha512-hLv8XaQ8PTI9g2RHoQGf/WSxBfTB/NudRacbzdxmst5VHAqd1sMibWG7SENzT5Dj3yZ3kJYx+WiRYEcQTAkcYA==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/sha2@5.0.8", "@ethersproject/sha2@^5.0.7":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/sha2/-/sha2-5.0.8.tgz#9903c67e562739d8b312820b0a265b9c9bf35fc3"
@@ -1293,6 +1491,18 @@
     "@ethersproject/properties" "^5.0.7"
     elliptic "6.5.4"
 
+"@ethersproject/signing-key@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/signing-key/-/signing-key-5.5.0.tgz#2aa37169ce7e01e3e80f2c14325f624c29cedbe0"
+  integrity sha512-5VmseH7qjtNmDdZBswavhotYbWB0bOwKIlOTSlX14rKn5c11QmJwGt4GHeo7NrL/Ycl7uo9AHvEqs5xZgFBTng==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    bn.js "^4.11.9"
+    elliptic "6.5.4"
+    hash.js "1.1.7"
+
 "@ethersproject/solidity@5.0.9":
   version "5.0.9"
   resolved "https://registry.yarnpkg.com/@ethersproject/solidity/-/solidity-5.0.9.tgz#49100fbe9f364ac56f7ff7c726f4f3d151901134"
@@ -1313,6 +1523,15 @@
     "@ethersproject/constants" "^5.0.8"
     "@ethersproject/logger" "^5.0.8"
 
+"@ethersproject/strings@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/strings/-/strings-5.5.0.tgz#e6784d00ec6c57710755699003bc747e98c5d549"
+  integrity sha512-9fy3TtF5LrX/wTrBaT8FGE6TDJyVjOvXynXJz5MT5azq+E6D92zuKNx7i29sWW2FjVOaWjAsiZ1ZWznuduTIIQ==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/transactions@5.0.10", "@ethersproject/transactions@^5.0.9":
   version "5.0.10"
   resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.0.10.tgz#d50cafd80d27206336f80114bc0f18bc18687331"
@@ -1328,6 +1547,21 @@
     "@ethersproject/rlp" "^5.0.7"
     "@ethersproject/signing-key" "^5.0.8"
 
+"@ethersproject/transactions@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.5.0.tgz#7e9bf72e97bcdf69db34fe0d59e2f4203c7a2908"
+  integrity sha512-9RZYSKX26KfzEd/1eqvv8pLauCKzDTub0Ko4LfIgaERvRuwyaNV78mJs7cpIgZaDl6RJui4o49lHwwCM0526zA==
+  dependencies:
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/rlp" "^5.5.0"
+    "@ethersproject/signing-key" "^5.5.0"
+
 "@ethersproject/units@5.0.10":
   version "5.0.10"
   resolved "https://registry.yarnpkg.com/@ethersproject/units/-/units-5.0.10.tgz#9cca3b65cd0c92fab1bd33f2abd233546dd61987"
@@ -1369,6 +1603,17 @@
     "@ethersproject/properties" "^5.0.7"
     "@ethersproject/strings" "^5.0.8"
 
+"@ethersproject/web@^5.5.0":
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/web/-/web-5.5.1.tgz#cfcc4a074a6936c657878ac58917a61341681316"
+  integrity sha512-olvLvc1CB12sREc1ROPSHTdFCdvMh0J5GSJYiQg2D0hdD4QmJDy8QYDb1CvoqD/bF1c++aeKv2sR5uduuG9dQg==
+  dependencies:
+    "@ethersproject/base64" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
 "@ethersproject/wordlists@5.0.9", "@ethersproject/wordlists@^5.0.8":
   version "5.0.9"
   resolved "https://registry.yarnpkg.com/@ethersproject/wordlists/-/wordlists-5.0.9.tgz#f16cc0b317637c3ae9c689ebd7bc2cbbffadd013"
@@ -1735,6 +1980,17 @@
     "@types/yargs" "^15.0.0"
     chalk "^4.0.0"
 
+"@metamask/eth-sig-util@^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@metamask/eth-sig-util/-/eth-sig-util-4.0.0.tgz#11553ba06de0d1352332c1bde28c8edd00e0dcf6"
+  integrity sha512-LczOjjxY4A7XYloxzyxJIHONELmUxVZncpOLoClpEcTiebiVdM46KRPYXGuULro9oNNR2xdVx3yoKiQjdfWmoA==
+  dependencies:
+    ethereumjs-abi "^0.6.8"
+    ethereumjs-util "^6.2.1"
+    ethjs-util "^0.1.6"
+    tweetnacl "^1.0.3"
+    tweetnacl-util "^0.15.1"
+
 "@nodelib/fs.scandir@2.1.3":
   version "2.1.3"
   resolved "https://registry.yarnpkg.com/@nodelib/fs.scandir/-/fs.scandir-2.1.3.tgz#3a582bdb53804c6ba6d146579c46e52130cf4a3b"
@@ -1756,27 +2012,6 @@
     "@nodelib/fs.scandir" "2.1.3"
     fastq "^1.6.0"
 
-"@nomiclabs/ethereumjs-vm@4.2.2":
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/@nomiclabs/ethereumjs-vm/-/ethereumjs-vm-4.2.2.tgz#2f8817113ca0fb6c44c1b870d0a809f0e026a6cc"
-  integrity sha512-8WmX94mMcJaZ7/m7yBbyuS6B+wuOul+eF+RY9fBpGhNaUpyMR/vFIcDojqcWQ4Yafe1tMKY5LDu2yfT4NZgV4Q==
-  dependencies:
-    async "^2.1.2"
-    async-eventemitter "^0.2.2"
-    core-js-pure "^3.0.1"
-    ethereumjs-account "^3.0.0"
-    ethereumjs-block "^2.2.2"
-    ethereumjs-blockchain "^4.0.3"
-    ethereumjs-common "^1.5.0"
-    ethereumjs-tx "^2.1.2"
-    ethereumjs-util "^6.2.0"
-    fake-merkle-patricia-tree "^1.0.1"
-    functional-red-black-tree "^1.0.1"
-    merkle-patricia-tree "3.0.0"
-    rustbn.js "~0.2.0"
-    safe-buffer "^5.1.1"
-    util.promisify "^1.0.0"
-
 "@rollup/plugin-babel@^5.1.0":
   version "5.2.2"
   resolved "https://registry.yarnpkg.com/@rollup/plugin-babel/-/plugin-babel-5.2.2.tgz#e5623a01dd8e37e004ba87f2de218c611727d9b2"
@@ -1921,16 +2156,23 @@
   dependencies:
     "@sinonjs/commons" "^1.7.0"
 
-"@solidity-parser/parser@^0.11.0":
-  version "0.11.1"
-  resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.11.1.tgz#fa840af64840c930f24a9c82c08d4a092a068add"
-  integrity sha512-H8BSBoKE8EubJa0ONqecA2TviT3TnHeC4NpgnAHSUiuhZoQBfPB4L2P9bs8R6AoTW10Endvh3vc+fomVMIDIYQ==
+"@solidity-parser/parser@^0.14.0":
+  version "0.14.1"
+  resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.14.1.tgz#179afb29f4e295a77cc141151f26b3848abc3c46"
+  integrity sha512-eLjj2L6AuQjBB6s/ibwCAc0DwrR5Ge+ys+wgWo+bviU7fV2nTMQhU63CGaDKXg9iTmMxwhkyoggdIR7ZGRfMgw==
+  dependencies:
+    antlr4ts "^0.5.0-alpha.4"
 
 "@typechain/ethers-v5@^4.0.0":
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/@typechain/ethers-v5/-/ethers-v5-4.0.0.tgz#2a8be5e108d23f3b8e6354d1618fdc2abcb00b07"
   integrity sha512-Rw4WHPIuwTXWcHfmn9ICQISQhmJa6Ug5IjqPYLpsKqlED2L4W2JgQ6S9hYt4IKVmT//1yxIxD+iaa5tSQEEx1A==
 
+"@types/abstract-leveldown@*":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@types/abstract-leveldown/-/abstract-leveldown-7.2.0.tgz#f055979a99f7654e84d6b8e6267419e9c4cfff87"
+  integrity sha512-q5veSX6zjUy/DlDhR4Y4cU0k2Ar+DT2LUraP00T19WLmTO6Se1djepCCaqU6nQrwcJ5Hyo/CWqxTzrrFg8eqbQ==
+
 "@types/babel__core@^7.0.0", "@types/babel__core@^7.1.7":
   version "7.1.12"
   resolved "https://registry.yarnpkg.com/@types/babel__core/-/babel__core-7.1.12.tgz#4d8e9e51eb265552a7e4f1ff2219ab6133bdfb2d"
@@ -1971,13 +2213,20 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
-"@types/bn.js@^4.11.3", "@types/bn.js@^4.11.5":
+"@types/bn.js@^4.11.3":
   version "4.11.6"
   resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-4.11.6.tgz#c306c70d9358aaea33cd4eda092a742b9505967c"
   integrity sha512-pqr857jrp2kPuO9uRjZ3PwnJTjoQy+fcdxvBTvHm6dkmEL9q+hDD/2j/0ELOBPtPnS8LjCX0gI9nbl8lVkadpg==
   dependencies:
     "@types/node" "*"
 
+"@types/bn.js@^5.1.0":
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-5.1.0.tgz#32c5d271503a12653c62cf4d2b45e6eab8cebc68"
+  integrity sha512-QSSVYj7pYFN49kW77o2s9xTCwZ8F2xLbjLLSEVh8D2F4JUhZtPAGOFLTD+ffqksBx/u4cE/KImFjyhqCjn/LIA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/bs58@^4.0.1":
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/@types/bs58/-/bs58-4.0.1.tgz#3d51222aab067786d3bc3740a84a7f5a0effaa37"
@@ -2065,6 +2314,20 @@
   resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
   integrity sha1-7ihweulOEdK4J7y+UnC86n8+ce4=
 
+"@types/level-errors@*":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@types/level-errors/-/level-errors-3.0.0.tgz#15c1f4915a5ef763b51651b15e90f6dc081b96a8"
+  integrity sha512-/lMtoq/Cf/2DVOm6zE6ORyOM+3ZVm/BvzEZVxUhf6bgh8ZHglXlBqxbxSlJeVp8FCbD3IVvk/VbsaNmDjrQvqQ==
+
+"@types/levelup@^4.3.0":
+  version "4.3.3"
+  resolved "https://registry.yarnpkg.com/@types/levelup/-/levelup-4.3.3.tgz#4dc2b77db079b1cf855562ad52321aa4241b8ef4"
+  integrity sha512-K+OTIjJcZHVlZQN1HmU64VtrC0jC3dXWQozuEIR9zVvltIk90zaGPM2AgT+fIkChpzHhFE3YnvFLCbLtzAmexA==
+  dependencies:
+    "@types/abstract-leveldown" "*"
+    "@types/level-errors" "*"
+    "@types/node" "*"
+
 "@types/lru-cache@^5.1.0":
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/@types/lru-cache/-/lru-cache-5.1.0.tgz#57f228f2b80c046b4a1bd5cac031f81f207f4f03"
@@ -2292,25 +2555,26 @@ abort-controller@^3.0.0:
   dependencies:
     event-target-shim "^5.0.0"
 
-abstract-leveldown@^5.0.0, abstract-leveldown@~5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-5.0.0.tgz#f7128e1f86ccabf7d2893077ce5d06d798e386c6"
-  integrity sha512-5mU5P1gXtsMIXg65/rsYGsi93+MlogXZ9FA8JnwKurHQg64bfXwGYVdVdijNTVNOlAsuIiOwHdvFFD5JqCJQ7A==
-  dependencies:
-    xtend "~4.0.0"
-
-abstract-leveldown@~2.6.0:
-  version "2.6.3"
-  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-2.6.3.tgz#1c5e8c6a5ef965ae8c35dfb3a8770c476b82c4b8"
-  integrity sha512-2++wDf/DYqkPR3o5tbfdhF96EfMApo1GpPfzOsR/ZYXdkSmELlvOOEAl9iKkRsktMPHdGjO4rtkBpf2I7TiTeA==
+abstract-leveldown@^6.2.1:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-6.3.0.tgz#d25221d1e6612f820c35963ba4bd739928f6026a"
+  integrity sha512-TU5nlYgta8YrBMNpc9FwQzRbiXsj49gsALsXadbGHt9CROPzX5fB0rWDR5mtdpOOKa5XqRFpbj1QroPAoPzVjQ==
   dependencies:
+    buffer "^5.5.0"
+    immediate "^3.2.3"
+    level-concat-iterator "~2.0.0"
+    level-supports "~1.0.0"
     xtend "~4.0.0"
 
-abstract-leveldown@~2.7.1:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-2.7.2.tgz#87a44d7ebebc341d59665204834c8b7e0932cc93"
-  integrity sha512-+OVvxH2rHVEhWLdbudP6p0+dNMXu8JA1CbhP19T8paTYAcX7oJ4OVjT+ZUVpv7mITxXHqDMej+GdqXBmXkw09w==
+abstract-leveldown@~6.2.1:
+  version "6.2.3"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-6.2.3.tgz#036543d87e3710f2528e47040bc3261b77a9a8eb"
+  integrity sha512-BsLm5vFMRUrrLeCcRc+G0t2qOaTzpoJQLOubq2XM72eNpjF5UdU5o/5NvlNhx95XHcAvcl8OMXr4mlg/fRgUXQ==
   dependencies:
+    buffer "^5.5.0"
+    immediate "^3.2.3"
+    level-concat-iterator "~2.0.0"
+    level-supports "~1.0.0"
     xtend "~4.0.0"
 
 acorn-globals@^4.3.2:
@@ -2448,6 +2712,11 @@ ansi-styles@^4.0.0, ansi-styles@^4.1.0:
     "@types/color-name" "^1.1.1"
     color-convert "^2.0.1"
 
+antlr4ts@^0.5.0-alpha.4:
+  version "0.5.0-alpha.4"
+  resolved "https://registry.yarnpkg.com/antlr4ts/-/antlr4ts-0.5.0-alpha.4.tgz#71702865a87478ed0b40c0709f422cf14d51652a"
+  integrity sha512-WPQDt1B74OfPv/IMS2ekXAKkTZIHl88uMetg6q3OTqgFxZ/dxDXI0EWLyZid/1Pe6hTftyg5N7gel5wNAGxXyQ==
+
 anymatch@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
@@ -2596,19 +2865,14 @@ astral-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
   integrity sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==
 
-async-eventemitter@^0.2.2:
+async-eventemitter@^0.2.4:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/async-eventemitter/-/async-eventemitter-0.2.4.tgz#f5e7c8ca7d3e46aab9ec40a292baf686a0bafaca"
   integrity sha512-pd20BwL7Yt1zwDFy+8MX8F1+WCT8aQeKj0kQnTrH9WaeRETlRamVhD0JtRPmrV4GfOJ2F9CvdQkZeZhnh2TuHw==
   dependencies:
     async "^2.4.0"
 
-async@^1.4.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
-  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
-
-async@^2.0.1, async@^2.1.2, async@^2.4.0, async@^2.6.1:
+async@^2.4.0:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
   integrity sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
@@ -2876,7 +3140,7 @@ blakejs@^1.1.0:
   resolved "https://registry.yarnpkg.com/blakejs/-/blakejs-1.1.0.tgz#69df92ef953aa88ca51a32df6ab1c54a155fc7a5"
   integrity sha1-ad+S75U6qIylGjLfarHFShVfx6U=
 
-bn.js@^4.0.0, bn.js@^4.10.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.8, bn.js@^4.11.9, bn.js@^4.4.0, bn.js@^4.8.0:
+bn.js@^4.0.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.8, bn.js@^4.11.9, bn.js@^4.4.0:
   version "4.11.9"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.9.tgz#26d556829458f9d1e81fc48952493d0ba3507828"
   integrity sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw==
@@ -3014,7 +3278,7 @@ buffer-xor@^2.0.1:
   dependencies:
     safe-buffer "^5.1.1"
 
-buffer@^5.2.1, buffer@^5.6.0:
+buffer@^5.5.0, buffer@^5.6.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
   integrity sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==
@@ -3144,13 +3408,6 @@ chardet@^0.7.0:
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.7.0.tgz#90094849f0937f2eedc2425d0d28a9e5f0cbad9e"
   integrity sha512-mT8iDcrh03qDGRRmoA2hmBJnxpllMR+0/0qlzjqZES6NdiWDcZkCNAk4rPFZ9Q85r27unkiNNg8ZOiwZXBHwcA==
 
-checkpoint-store@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/checkpoint-store/-/checkpoint-store-1.1.0.tgz#04e4cb516b91433893581e6d4601a78e9552ea06"
-  integrity sha1-BOTLUWuRQziTWB5tRgGnjpVS6gY=
-  dependencies:
-    functional-red-black-tree "^1.0.1"
-
 chokidar@3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.3.0.tgz#12c0714668c55800f659e262d4962a97faf554a6"
@@ -3634,6 +3891,14 @@ cosmiconfig@^7.0.0:
     path-type "^4.0.0"
     yaml "^1.10.0"
 
+crc-32@^1.2.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/crc-32/-/crc-32-1.2.1.tgz#436d2bcaad27bcb6bd073a2587139d3024a16460"
+  integrity sha512-Dn/xm/1vFFgs3nfrpEVScHoIslO9NZRITWGz/1E/St6u4xw99vfZzVkW0OSnzx2h9egej9xwMCEut6sqwokM/w==
+  dependencies:
+    exit-on-epipe "~1.0.1"
+    printj "~1.3.1"
+
 create-hash@^1.1.0, create-hash@^1.1.2, create-hash@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
@@ -3753,10 +4018,10 @@ debug@3.2.6:
   dependencies:
     ms "^2.1.1"
 
-debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1:
-  version "4.3.1"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.1.tgz#f0d229c505e0c6d8c49ac553d1b13dc183f6b2ee"
-  integrity sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==
+debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@^4.3.3:
+  version "4.3.3"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.3.tgz#04266e0b70a98d4462e6e288e38259213332b664"
+  integrity sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==
   dependencies:
     ms "2.1.2"
 
@@ -3807,19 +4072,12 @@ defaults@^1.0.3:
   dependencies:
     clone "^1.0.2"
 
-deferred-leveldown@~1.2.1:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-1.2.2.tgz#3acd2e0b75d1669924bc0a4b642851131173e1eb"
-  integrity sha512-uukrWD2bguRtXilKt6cAWKyoXrTSMo5m7crUdLfWQmu8kIm88w3QZoUL+6nhpfKVmhHANER6Re3sKoNoZ3IKMA==
-  dependencies:
-    abstract-leveldown "~2.6.0"
-
-deferred-leveldown@~4.0.0:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-4.0.2.tgz#0b0570087827bf480a23494b398f04c128c19a20"
-  integrity sha512-5fMC8ek8alH16QiV0lTCis610D1Zt1+LA4MS4d63JgS32lrCjTFDUFz2ao09/j2I4Bqb5jL4FZYwu7Jz0XO1ww==
+deferred-leveldown@~5.3.0:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-5.3.0.tgz#27a997ad95408b61161aa69bd489b86c71b78058"
+  integrity sha512-a59VOT+oDy7vtAbLRCZwWgxu2BaCfd5Hk7wxJd48ei7I+nsg8Orlb9CLG0PMZienk9BSUKgeAqkO2+Lw+1+Ukw==
   dependencies:
-    abstract-leveldown "~5.0.0"
+    abstract-leveldown "~6.2.1"
     inherits "^2.0.3"
 
 define-properties@^1.1.2, define-properties@^1.1.3:
@@ -3975,7 +4233,7 @@ elliptic@6.5.4:
     minimalistic-assert "^1.0.1"
     minimalistic-crypto-utils "^1.0.1"
 
-elliptic@^6.4.0, elliptic@^6.5.2:
+elliptic@^6.5.2:
   version "6.5.3"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.3.tgz#cb59eb2efdaf73a0bd78ccd7015a62ad6e0f93d6"
   integrity sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==
@@ -4003,16 +4261,15 @@ emoji-regex@^8.0.0:
   resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-8.0.0.tgz#e818fd69ce5ccfcb404594f842963bf53164cc37"
   integrity sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==
 
-encoding-down@~5.0.0:
-  version "5.0.4"
-  resolved "https://registry.yarnpkg.com/encoding-down/-/encoding-down-5.0.4.tgz#1e477da8e9e9d0f7c8293d320044f8b2cd8e9614"
-  integrity sha512-8CIZLDcSKxgzT+zX8ZVfgNbu8Md2wq/iqa1Y7zyVR18QBEAc0Nmzuvj/N5ykSKpfGzjM8qxbaFntLPwnVoUhZw==
+encoding-down@^6.3.0:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/encoding-down/-/encoding-down-6.3.0.tgz#b1c4eb0e1728c146ecaef8e32963c549e76d082b"
+  integrity sha512-QKrV0iKR6MZVJV08QY0wp1e7vF6QbhnbQhb07bwpEyuz4uZiZgPlEGdkCROuFkUwdxlFaiPIhjyarH1ee/3vhw==
   dependencies:
-    abstract-leveldown "^5.0.0"
+    abstract-leveldown "^6.2.1"
     inherits "^2.0.3"
     level-codec "^9.0.0"
     level-errors "^2.0.0"
-    xtend "^4.0.1"
 
 end-of-stream@^1.1.0:
   version "1.4.4"
@@ -4422,28 +4679,6 @@ esutils@^2.0.2:
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
   integrity sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==
 
-eth-sig-util@^2.5.2:
-  version "2.5.3"
-  resolved "https://registry.yarnpkg.com/eth-sig-util/-/eth-sig-util-2.5.3.tgz#6938308b38226e0b3085435474900b03036abcbe"
-  integrity sha512-KpXbCKmmBUNUTGh9MRKmNkIPietfhzBqqYqysDavLseIiMUGl95k6UcPEkALAZlj41e9E6yioYXc1PC333RKqw==
-  dependencies:
-    buffer "^5.2.1"
-    elliptic "^6.4.0"
-    ethereumjs-abi "0.6.5"
-    ethereumjs-util "^5.1.1"
-    tweetnacl "^1.0.0"
-    tweetnacl-util "^0.15.0"
-
-ethashjs@~0.0.7:
-  version "0.0.8"
-  resolved "https://registry.yarnpkg.com/ethashjs/-/ethashjs-0.0.8.tgz#227442f1bdee409a548fb04136e24c874f3aa6f9"
-  integrity sha512-/MSbf/r2/Ld8o0l15AymjOTlPqpN8Cr4ByUEA9GtR4x0yAh3TdtDzEg29zMjXCNPI7u6E5fOQdj/Cf9Tc7oVNw==
-  dependencies:
-    async "^2.1.2"
-    buffer-xor "^2.0.1"
-    ethereumjs-util "^7.0.2"
-    miller-rabin "^4.0.0"
-
 ethereum-cryptography@^0.1.2, ethereum-cryptography@^0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/ethereum-cryptography/-/ethereum-cryptography-0.1.3.tgz#8d6143cfc3d74bf79bbd8edecdf29e4ae20dd191"
@@ -4465,14 +4700,6 @@ ethereum-cryptography@^0.1.2, ethereum-cryptography@^0.1.3:
     secp256k1 "^4.0.1"
     setimmediate "^1.0.5"
 
-ethereumjs-abi@0.6.5:
-  version "0.6.5"
-  resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.5.tgz#5a637ef16ab43473fa72a29ad90871405b3f5241"
-  integrity sha1-WmN+8Wq0NHP6cqKa2QhxQFs/UkE=
-  dependencies:
-    bn.js "^4.10.0"
-    ethereumjs-util "^4.3.0"
-
 ethereumjs-abi@^0.6.8:
   version "0.6.8"
   resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.8.tgz#71bc152db099f70e62f108b7cdfca1b362c6fcae"
@@ -4481,80 +4708,7 @@ ethereumjs-abi@^0.6.8:
     bn.js "^4.11.8"
     ethereumjs-util "^6.0.0"
 
-ethereumjs-account@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ethereumjs-account/-/ethereumjs-account-3.0.0.tgz#728f060c8e0c6e87f1e987f751d3da25422570a9"
-  integrity sha512-WP6BdscjiiPkQfF9PVfMcwx/rDvfZTjFKY0Uwc09zSQr9JfIVH87dYIJu0gNhBhpmovV4yq295fdllS925fnBA==
-  dependencies:
-    ethereumjs-util "^6.0.0"
-    rlp "^2.2.1"
-    safe-buffer "^5.1.1"
-
-ethereumjs-block@^2.2.2, ethereumjs-block@~2.2.2:
-  version "2.2.2"
-  resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-2.2.2.tgz#c7654be7e22df489fda206139ecd63e2e9c04965"
-  integrity sha512-2p49ifhek3h2zeg/+da6XpdFR3GlqY3BIEiqxGF8j9aSRIgkb7M1Ky+yULBKJOu8PAZxfhsYA+HxUk2aCQp3vg==
-  dependencies:
-    async "^2.0.1"
-    ethereumjs-common "^1.5.0"
-    ethereumjs-tx "^2.1.1"
-    ethereumjs-util "^5.0.0"
-    merkle-patricia-tree "^2.1.2"
-
-ethereumjs-blockchain@^4.0.3:
-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/ethereumjs-blockchain/-/ethereumjs-blockchain-4.0.4.tgz#30f2228dc35f6dcf94423692a6902604ae34960f"
-  integrity sha512-zCxaRMUOzzjvX78DTGiKjA+4h2/sF0OYL1QuPux0DHpyq8XiNoF5GYHtb++GUxVlMsMfZV7AVyzbtgcRdIcEPQ==
-  dependencies:
-    async "^2.6.1"
-    ethashjs "~0.0.7"
-    ethereumjs-block "~2.2.2"
-    ethereumjs-common "^1.5.0"
-    ethereumjs-util "^6.1.0"
-    flow-stoplight "^1.0.0"
-    level-mem "^3.0.1"
-    lru-cache "^5.1.1"
-    rlp "^2.2.2"
-    semaphore "^1.1.0"
-
-ethereumjs-common@^1.5.0:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/ethereumjs-common/-/ethereumjs-common-1.5.2.tgz#2065dbe9214e850f2e955a80e650cb6999066979"
-  integrity sha512-hTfZjwGX52GS2jcVO6E2sx4YuFnf0Fhp5ylo4pEPhEffNln7vS59Hr5sLnp3/QCazFLluuBZ+FZ6J5HTp0EqCA==
-
-ethereumjs-tx@^2.1.1, ethereumjs-tx@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-2.1.2.tgz#5dfe7688bf177b45c9a23f86cf9104d47ea35fed"
-  integrity sha512-zZEK1onCeiORb0wyCXUvg94Ve5It/K6GD1K+26KfFKodiBiS6d9lfCXlUKGBBdQ+bv7Day+JK0tj1K+BeNFRAw==
-  dependencies:
-    ethereumjs-common "^1.5.0"
-    ethereumjs-util "^6.0.0"
-
-ethereumjs-util@^4.3.0:
-  version "4.5.1"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-4.5.1.tgz#f4bf9b3b515a484e3cc8781d61d9d980f7c83bd0"
-  integrity sha512-WrckOZ7uBnei4+AKimpuF1B3Fv25OmoRgmYCpGsP7u8PFxXAmAgiJSYT2kRWnt6fVIlKaQlZvuwXp7PIrmn3/w==
-  dependencies:
-    bn.js "^4.8.0"
-    create-hash "^1.1.2"
-    elliptic "^6.5.2"
-    ethereum-cryptography "^0.1.3"
-    rlp "^2.0.0"
-
-ethereumjs-util@^5.0.0, ethereumjs-util@^5.1.1, ethereumjs-util@^5.2.0:
-  version "5.2.1"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz#a833f0e5fca7e5b361384dc76301a721f537bf65"
-  integrity sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==
-  dependencies:
-    bn.js "^4.11.0"
-    create-hash "^1.1.2"
-    elliptic "^6.5.2"
-    ethereum-cryptography "^0.1.3"
-    ethjs-util "^0.1.3"
-    rlp "^2.0.0"
-    safe-buffer "^5.1.1"
-
-ethereumjs-util@^6.0.0, ethereumjs-util@^6.1.0, ethereumjs-util@^6.2.0:
+ethereumjs-util@^6.0.0, ethereumjs-util@^6.2.1:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz#fcb4e4dd5ceacb9d2305426ab1a5cd93e3163b69"
   integrity sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==
@@ -4567,16 +4721,15 @@ ethereumjs-util@^6.0.0, ethereumjs-util@^6.1.0, ethereumjs-util@^6.2.0:
     ethjs-util "0.1.6"
     rlp "^2.2.3"
 
-ethereumjs-util@^7.0.2:
-  version "7.0.7"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.0.7.tgz#484fb9c03b766b2ee64821281070616562fb5a59"
-  integrity sha512-vU5rtZBlZsgkTw3o6PDKyB8li2EgLavnAbsKcfsH2YhHH1Le+PP8vEiMnAnvgc1B6uMoaM5GDCrVztBw0Q5K9g==
+ethereumjs-util@^7.1.1, ethereumjs-util@^7.1.3, ethereumjs-util@^7.1.4:
+  version "7.1.4"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.4.tgz#a6885bcdd92045b06f596c7626c3e89ab3312458"
+  integrity sha512-p6KmuPCX4mZIqsQzXfmSx9Y0l2hqf+VkAiwSisW3UKUFdk8ZkAt+AYaor83z2nSi6CU2zSsXMlD80hAbNEGM0A==
   dependencies:
-    "@types/bn.js" "^4.11.3"
+    "@types/bn.js" "^5.1.0"
     bn.js "^5.1.2"
     create-hash "^1.1.2"
     ethereum-cryptography "^0.1.3"
-    ethjs-util "0.1.6"
     rlp "^2.2.4"
 
 ethers@5.0.31:
@@ -4615,7 +4768,7 @@ ethers@5.0.31:
     "@ethersproject/web" "5.0.13"
     "@ethersproject/wordlists" "5.0.9"
 
-ethjs-util@0.1.6, ethjs-util@^0.1.3:
+ethjs-util@0.1.6, ethjs-util@^0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/ethjs-util/-/ethjs-util-0.1.6.tgz#f308b62f185f9fe6237132fb2a9818866a5cd536"
   integrity sha512-CUnVOQq7gSpDHZVVrQW8ExxUETWrnrvXYvYz55wOU8Uj4VCgw56XC2B/fVqQN+f7gmrnRHSLVnFAwsCuNwji8w==
@@ -4685,6 +4838,11 @@ execa@^4.0.0, execa@^4.0.3:
     signal-exit "^3.0.2"
     strip-final-newline "^2.0.0"
 
+exit-on-epipe@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/exit-on-epipe/-/exit-on-epipe-1.0.1.tgz#0bdd92e87d5285d267daa8171d0eb06159689692"
+  integrity sha512-h2z5mrROTxce56S+pnvAV890uu7ls7f1kEvVGJbw1OlFH3/mlJ5bkXu0KRyW94v37zzHPiUd55iLn3DA7TjWpw==
+
 exit@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"
@@ -4780,13 +4938,6 @@ extsprintf@^1.2.0:
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
   integrity sha1-4mifjzVvrWLMplo6kcXfX5VRaS8=
 
-fake-merkle-patricia-tree@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/fake-merkle-patricia-tree/-/fake-merkle-patricia-tree-1.0.1.tgz#4b8c3acfb520afadf9860b1f14cd8ce3402cddd3"
-  integrity sha1-S4w6z7Ugr635hgsfFM2M40As3dM=
-  dependencies:
-    checkpoint-store "^1.1.0"
-
 fast-deep-equal@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.1.tgz#545145077c501491e33b15ec408c294376e94ae4"
@@ -4947,23 +5098,11 @@ flatted@^2.0.0:
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.1.tgz#69e57caa8f0eacbc281d2e2cb458d46fdb449e08"
   integrity sha512-a1hQMktqW9Nmqr5aktAux3JMNqaucxGcjtjWnZLHX7yyPCmlSV3M54nGYbqT8K+0GhF3NBgmJCc3ma+WOgX8Jg==
 
-flow-stoplight@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/flow-stoplight/-/flow-stoplight-1.0.0.tgz#4a292c5bcff8b39fa6cc0cb1a853d86f27eeff7b"
-  integrity sha1-SiksW8/4s5+mzAyxqFPYbyfu/3s=
-
 follow-redirects@^1.10.0, follow-redirects@^1.12.1:
   version "1.13.1"
   resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.13.1.tgz#5f69b813376cee4fd0474a3aba835df04ab763b7"
   integrity sha512-SSG5xmZh1mkPGyKzjZP8zLjltIfpW32Y5QpdNJyjcfGxK3qo3NDDkZOZSFiGn1A6SclQxY9GzEwAHQ3dmYRWpg==
 
-for-each@^0.3.3:
-  version "0.3.3"
-  resolved "https://registry.yarnpkg.com/for-each/-/for-each-0.3.3.tgz#69b447e88a0a5d32c3e7084f3f1710034b21376e"
-  integrity sha512-jqYfLp7mo9vIyQf8ykW2v7A+2N4QjeCeI5+Dz9XraiO1ign81wjiH7Fb9vSOWvQfNtmSa4H2RoQTrrXivdUZmw==
-  dependencies:
-    is-callable "^1.1.3"
-
 for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
@@ -5309,14 +5448,20 @@ hardhat-typechain@^0.3.3:
   integrity sha512-oI9YSutDfZnRlAV1bYTpLkBHw4rkhz9JDWAEXz2PR34ylpgLWxPFbPiHT5QXadGTlBqJUAT6JSTxCK1kADMkjA==
 
 hardhat@^2.0.3:
-  version "2.0.11"
-  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.0.11.tgz#f7bc9d38045ecda58665dcf1ffae9ff940712f06"
-  integrity sha512-K3cyXV/F0reT0Lu7fHHBAgVOVenUaYa6uCNvzYbFnjKH+s8O4CEdrsFQ/yIbmLgMpC2EQeuBSwb+8ZhWVj8AGQ==
-  dependencies:
-    "@nomiclabs/ethereumjs-vm" "4.2.2"
+  version "2.8.4"
+  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.8.4.tgz#b12cc8b8ea578fc6cefbcd9683d558adc302152d"
+  integrity sha512-lEwvQSbhABpKgBTJnRgdZ6nZZRmgKUF2G8aGNaBVIQnJeRZjELnZHLIWXAF1HW0Q1NFCyo9trxOrOuzmiS+r/w==
+  dependencies:
+    "@ethereumjs/block" "^3.6.0"
+    "@ethereumjs/blockchain" "^5.5.0"
+    "@ethereumjs/common" "^2.6.0"
+    "@ethereumjs/tx" "^3.4.0"
+    "@ethereumjs/vm" "^5.6.0"
+    "@ethersproject/abi" "^5.1.2"
+    "@metamask/eth-sig-util" "^4.0.0"
     "@sentry/node" "^5.18.1"
-    "@solidity-parser/parser" "^0.11.0"
-    "@types/bn.js" "^4.11.5"
+    "@solidity-parser/parser" "^0.14.0"
+    "@types/bn.js" "^5.1.0"
     "@types/lru-cache" "^5.1.0"
     abort-controller "^3.0.0"
     adm-zip "^0.4.16"
@@ -5327,23 +5472,20 @@ hardhat@^2.0.3:
     debug "^4.1.1"
     enquirer "^2.3.0"
     env-paths "^2.2.0"
-    eth-sig-util "^2.5.2"
     ethereum-cryptography "^0.1.2"
     ethereumjs-abi "^0.6.8"
-    ethereumjs-account "^3.0.0"
-    ethereumjs-block "^2.2.2"
-    ethereumjs-common "^1.5.0"
-    ethereumjs-tx "^2.1.2"
-    ethereumjs-util "^6.2.0"
+    ethereumjs-util "^7.1.3"
     find-up "^2.1.0"
     fp-ts "1.19.3"
     fs-extra "^7.0.1"
     glob "^7.1.3"
+    https-proxy-agent "^5.0.0"
     immutable "^4.0.0-rc.12"
     io-ts "1.10.4"
     lodash "^4.17.11"
-    merkle-patricia-tree "3.0.0"
-    mocha "^7.1.2"
+    merkle-patricia-tree "^4.2.2"
+    mnemonist "^0.38.0"
+    mocha "^7.2.0"
     node-fetch "^2.6.0"
     qs "^6.7.0"
     raw-body "^2.4.1"
@@ -5355,8 +5497,8 @@ hardhat@^2.0.3:
     stacktrace-parser "^0.1.10"
     "true-case-path" "^2.2.1"
     tsort "0.0.1"
-    uuid "^3.3.2"
-    ws "^7.2.1"
+    uuid "^8.3.2"
+    ws "^7.4.6"
 
 has-flag@^3.0.0:
   version "3.0.0"
@@ -5428,7 +5570,7 @@ hash.js@1.1.3:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.0"
 
-hash.js@^1.0.0, hash.js@^1.0.3, hash.js@^1.1.7:
+hash.js@1.1.7, hash.js@^1.0.0, hash.js@^1.0.3, hash.js@^1.1.7:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.7.tgz#0babca538e8d4ee4a0f8988d68866537a003cf42"
   integrity sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==
@@ -5703,16 +5845,16 @@ is-buffer@~2.0.3:
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-2.0.5.tgz#ebc252e400d22ff8d77fa09888821a24a658c191"
   integrity sha512-i2R6zNFDwgEHJyQUtJEk0XFi1i0dPFn/oqjK3/vPCcDeJvW5NQ83V8QbicfF1SupOaB0h8ntgBC2YiE7dfyctQ==
 
-is-callable@^1.1.3, is-callable@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.2.2.tgz#c7c6715cd22d4ddb48d3e19970223aceabb080d9"
-  integrity sha512-dnMqspv5nU3LoewK2N/y7KLtxtakvTuaCsU9FU50/QDmdbHNy/4/JuRtMHqRU22o3q+W89YQndQEeCVwK+3qrA==
-
 is-callable@^1.1.4, is-callable@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.5.tgz#f7e46b596890456db74e7f6e976cb3273d06faab"
   integrity sha512-ESKv5sMCJB2jnHTWZ3O5itG+O128Hsus4K4Qh1h2/cgn2vbgnLSVqfV46AeJA9D5EeeLa9w81KUXMtn34zhX+Q==
 
+is-callable@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.2.2.tgz#c7c6715cd22d4ddb48d3e19970223aceabb080d9"
+  integrity sha512-dnMqspv5nU3LoewK2N/y7KLtxtakvTuaCsU9FU50/QDmdbHNy/4/JuRtMHqRU22o3q+W89YQndQEeCVwK+3qrA==
+
 is-ci@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-2.0.0.tgz#6bc6334181810e04b5c22b3d589fdca55026404c"
@@ -5944,11 +6086,6 @@ is-wsl@^2.1.1, is-wsl@^2.2.0:
   dependencies:
     is-docker "^2.0.0"
 
-isarray@0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
-  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
-
 isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
@@ -7025,17 +7162,10 @@ level-codec@^9.0.0:
   dependencies:
     buffer "^5.6.0"
 
-level-codec@~7.0.0:
-  version "7.0.1"
-  resolved "https://registry.yarnpkg.com/level-codec/-/level-codec-7.0.1.tgz#341f22f907ce0f16763f24bddd681e395a0fb8a7"
-  integrity sha512-Ua/R9B9r3RasXdRmOtd+t9TCOEIIlts+TN/7XTT2unhDaL6sJn83S3rUyljbr6lVtw49N3/yA0HHjpV6Kzb2aQ==
-
-level-errors@^1.0.3:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/level-errors/-/level-errors-1.1.2.tgz#4399c2f3d3ab87d0625f7e3676e2d807deff404d"
-  integrity sha512-Sw/IJwWbPKF5Ai4Wz60B52yj0zYeqzObLh8k1Tk88jVmD51cJSKWSYpRyhVIvFzZdvsPqlH5wfhp/yxdsaQH4w==
-  dependencies:
-    errno "~0.1.1"
+level-concat-iterator@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/level-concat-iterator/-/level-concat-iterator-2.0.1.tgz#1d1009cf108340252cb38c51f9727311193e6263"
+  integrity sha512-OTKKOqeav2QWcERMJR7IS9CUo1sHnke2C0gkSmcR7QuEtFNLLzHQAvnMw8ykvEcv0Qtkg0p7FOwP1v9e5Smdcw==
 
 level-errors@^2.0.0, level-errors@~2.0.0:
   version "2.0.1"
@@ -7044,86 +7174,56 @@ level-errors@^2.0.0, level-errors@~2.0.0:
   dependencies:
     errno "~0.1.1"
 
-level-errors@~1.0.3:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/level-errors/-/level-errors-1.0.5.tgz#83dbfb12f0b8a2516bdc9a31c4876038e227b859"
-  integrity sha512-/cLUpQduF6bNrWuAC4pwtUKA5t669pCsCi2XbmojG2tFeOr9j6ShtdDCtFFQO1DRt+EVZhx9gPzP9G2bUaG4ig==
-  dependencies:
-    errno "~0.1.1"
-
-level-iterator-stream@~1.3.0:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/level-iterator-stream/-/level-iterator-stream-1.3.1.tgz#e43b78b1a8143e6fa97a4f485eb8ea530352f2ed"
-  integrity sha1-5Dt4sagUPm+pek9IXrjqUwNS8u0=
-  dependencies:
-    inherits "^2.0.1"
-    level-errors "^1.0.3"
-    readable-stream "^1.0.33"
-    xtend "^4.0.0"
-
-level-iterator-stream@~3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/level-iterator-stream/-/level-iterator-stream-3.0.1.tgz#2c98a4f8820d87cdacab3132506815419077c730"
-  integrity sha512-nEIQvxEED9yRThxvOrq8Aqziy4EGzrxSZK+QzEFAVuJvQ8glfyZ96GB6BoI4sBbLfjMXm2w4vu3Tkcm9obcY0g==
+level-iterator-stream@~4.0.0:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/level-iterator-stream/-/level-iterator-stream-4.0.2.tgz#7ceba69b713b0d7e22fcc0d1f128ccdc8a24f79c"
+  integrity sha512-ZSthfEqzGSOMWoUGhTXdX9jv26d32XJuHz/5YnuHZzH6wldfWMOVwI9TBtKcya4BKTyTt3XVA0A3cF3q5CY30Q==
   dependencies:
-    inherits "^2.0.1"
-    readable-stream "^2.3.6"
-    xtend "^4.0.0"
+    inherits "^2.0.4"
+    readable-stream "^3.4.0"
+    xtend "^4.0.2"
 
-level-mem@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/level-mem/-/level-mem-3.0.1.tgz#7ce8cf256eac40f716eb6489654726247f5a89e5"
-  integrity sha512-LbtfK9+3Ug1UmvvhR2DqLqXiPW1OJ5jEh0a3m9ZgAipiwpSxGj/qaVVy54RG5vAQN1nCuXqjvprCuKSCxcJHBg==
+level-mem@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/level-mem/-/level-mem-5.0.1.tgz#c345126b74f5b8aa376dc77d36813a177ef8251d"
+  integrity sha512-qd+qUJHXsGSFoHTziptAKXoLX87QjR7v2KMbqncDXPxQuCdsQlzmyX+gwrEHhlzn08vkf8TyipYyMmiC6Gobzg==
   dependencies:
-    level-packager "~4.0.0"
-    memdown "~3.0.0"
+    level-packager "^5.0.3"
+    memdown "^5.0.0"
 
-level-packager@~4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/level-packager/-/level-packager-4.0.1.tgz#7e7d3016af005be0869bc5fa8de93d2a7f56ffe6"
-  integrity sha512-svCRKfYLn9/4CoFfi+d8krOtrp6RoX8+xm0Na5cgXMqSyRru0AnDYdLl+YI8u1FyS6gGZ94ILLZDE5dh2but3Q==
+level-packager@^5.0.3:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/level-packager/-/level-packager-5.1.1.tgz#323ec842d6babe7336f70299c14df2e329c18939"
+  integrity sha512-HMwMaQPlTC1IlcwT3+swhqf/NUO+ZhXVz6TY1zZIIZlIR0YSn8GtAAWmIvKjNY16ZkEg/JcpAuQskxsXqC0yOQ==
   dependencies:
-    encoding-down "~5.0.0"
-    levelup "^3.0.0"
+    encoding-down "^6.3.0"
+    levelup "^4.3.2"
 
-level-ws@0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/level-ws/-/level-ws-0.0.0.tgz#372e512177924a00424b0b43aef2bb42496d228b"
-  integrity sha1-Ny5RIXeSSgBCSwtDrvK7QkltIos=
+level-supports@~1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/level-supports/-/level-supports-1.0.1.tgz#2f530a596834c7301622521988e2c36bb77d122d"
+  integrity sha512-rXM7GYnW8gsl1vedTJIbzOrRv85c/2uCMpiiCzO2fndd06U/kUXEEU9evYn4zFggBOg36IsBW8LzqIpETwwQzg==
   dependencies:
-    readable-stream "~1.0.15"
-    xtend "~2.1.1"
+    xtend "^4.0.2"
 
-level-ws@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/level-ws/-/level-ws-1.0.0.tgz#19a22d2d4ac57b18cc7c6ecc4bd23d899d8f603b"
-  integrity sha512-RXEfCmkd6WWFlArh3X8ONvQPm8jNpfA0s/36M4QzLqrLEIt1iJE9WBHLZ5vZJK6haMjJPJGJCQWfjMNnRcq/9Q==
+level-ws@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/level-ws/-/level-ws-2.0.0.tgz#207a07bcd0164a0ec5d62c304b4615c54436d339"
+  integrity sha512-1iv7VXx0G9ec1isqQZ7y5LmoZo/ewAsyDHNA8EFDW5hqH2Kqovm33nSFkSdnLLAK+I5FlT+lo5Cw9itGe+CpQA==
   dependencies:
     inherits "^2.0.3"
-    readable-stream "^2.2.8"
+    readable-stream "^3.1.0"
     xtend "^4.0.1"
 
-levelup@^1.2.1:
-  version "1.3.9"
-  resolved "https://registry.yarnpkg.com/levelup/-/levelup-1.3.9.tgz#2dbcae845b2bb2b6bea84df334c475533bbd82ab"
-  integrity sha512-VVGHfKIlmw8w1XqpGOAGwq6sZm2WwWLmlDcULkKWQXEA5EopA8OBNJ2Ck2v6bdk8HeEZSbCSEgzXadyQFm76sQ==
-  dependencies:
-    deferred-leveldown "~1.2.1"
-    level-codec "~7.0.0"
-    level-errors "~1.0.3"
-    level-iterator-stream "~1.3.0"
-    prr "~1.0.1"
-    semver "~5.4.1"
-    xtend "~4.0.0"
-
-levelup@^3.0.0:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/levelup/-/levelup-3.1.1.tgz#c2c0b3be2b4dc316647c53b42e2f559e232d2189"
-  integrity sha512-9N10xRkUU4dShSRRFTBdNaBxofz+PGaIZO962ckboJZiNmLuhVT6FZ6ZKAsICKfUBO76ySaYU6fJWX/jnj3Lcg==
+levelup@^4.3.2:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/levelup/-/levelup-4.4.0.tgz#f89da3a228c38deb49c48f88a70fb71f01cafed6"
+  integrity sha512-94++VFO3qN95cM/d6eBXvd894oJE0w3cInq9USsyQzzoJxmiYzPAocNcuGCPGGjoXqDVJcr3C1jzt1TSjyaiLQ==
   dependencies:
-    deferred-leveldown "~4.0.0"
+    deferred-leveldown "~5.3.0"
     level-errors "~2.0.0"
-    level-iterator-stream "~3.0.0"
+    level-iterator-stream "~4.0.0"
+    level-supports "~1.0.0"
     xtend "~4.0.0"
 
 leven@^3.1.0:
@@ -7384,6 +7484,11 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
+mcl-wasm@^0.7.1:
+  version "0.7.9"
+  resolved "https://registry.yarnpkg.com/mcl-wasm/-/mcl-wasm-0.7.9.tgz#c1588ce90042a8700c3b60e40efb339fc07ab87f"
+  integrity sha512-iJIUcQWA88IJB/5L15GnJVnSQJmf/YaxxV6zRavv83HILHaJQb6y0iFyDMdDO0gN8X37tdxmAOrH/P8B6RB8sQ==
+
 md5.js@^1.3.4:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.5.tgz#b5d07b8e3216e3e27cd728d72f70d1e6a342005f"
@@ -7393,29 +7498,17 @@ md5.js@^1.3.4:
     inherits "^2.0.1"
     safe-buffer "^5.1.2"
 
-memdown@^1.0.0:
-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/memdown/-/memdown-1.4.1.tgz#b4e4e192174664ffbae41361aa500f3119efe215"
-  integrity sha1-tOThkhdGZP+65BNhqlAPMRnv4hU=
-  dependencies:
-    abstract-leveldown "~2.7.1"
-    functional-red-black-tree "^1.0.1"
-    immediate "^3.2.3"
-    inherits "~2.0.1"
-    ltgt "~2.2.0"
-    safe-buffer "~5.1.1"
-
-memdown@~3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/memdown/-/memdown-3.0.0.tgz#93aca055d743b20efc37492e9e399784f2958309"
-  integrity sha512-tbV02LfZMWLcHcq4tw++NuqMO+FZX8tNJEiD2aNRm48ZZusVg5N8NART+dmBkepJVye986oixErf7jfXboMGMA==
+memdown@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/memdown/-/memdown-5.1.0.tgz#608e91a9f10f37f5b5fe767667a8674129a833cb"
+  integrity sha512-B3J+UizMRAlEArDjWHTMmadet+UKwHd3UjMgGBkZcKAxAYVPS9o0Yeiha4qvz7iGiL2Sb3igUft6p7nbFWctpw==
   dependencies:
-    abstract-leveldown "~5.0.0"
+    abstract-leveldown "~6.2.1"
     functional-red-black-tree "~1.0.1"
     immediate "~3.2.3"
     inherits "~2.0.1"
     ltgt "~2.2.0"
-    safe-buffer "~5.1.1"
+    safe-buffer "~5.2.0"
 
 memorystream@^0.3.1:
   version "0.3.1"
@@ -7465,32 +7558,17 @@ merge2@^1.3.0:
   resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.4.1.tgz#4368892f885e907455a6fd7dc55c0c9d404990ae"
   integrity sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==
 
-merkle-patricia-tree@3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-3.0.0.tgz#448d85415565df72febc33ca362b8b614f5a58f8"
-  integrity sha512-soRaMuNf/ILmw3KWbybaCjhx86EYeBbD8ph0edQCTed0JN/rxDt1EBN52Ajre3VyGo+91f8+/rfPIRQnnGMqmQ==
-  dependencies:
-    async "^2.6.1"
-    ethereumjs-util "^5.2.0"
-    level-mem "^3.0.1"
-    level-ws "^1.0.0"
-    readable-stream "^3.0.6"
-    rlp "^2.0.0"
-    semaphore ">=1.0.1"
-
-merkle-patricia-tree@^2.1.2:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-2.3.2.tgz#982ca1b5a0fde00eed2f6aeed1f9152860b8208a"
-  integrity sha512-81PW5m8oz/pz3GvsAwbauj7Y00rqm81Tzad77tHBwU7pIAtN+TJnMSOJhxBKflSVYhptMMb9RskhqHqrSm1V+g==
-  dependencies:
-    async "^1.4.2"
-    ethereumjs-util "^5.0.0"
-    level-ws "0.0.0"
-    levelup "^1.2.1"
-    memdown "^1.0.0"
-    readable-stream "^2.0.0"
-    rlp "^2.0.0"
-    semaphore ">=1.0.1"
+merkle-patricia-tree@^4.2.2, merkle-patricia-tree@^4.2.3:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-4.2.3.tgz#b4e5d485d231f02b255ed79a7852f9d12ee0c09f"
+  integrity sha512-S4xevdXl5KvdBGgUxhQcxoep0onqXiIhzfwZp4M78kIuJH3Pu9o9IUgqhzSFOR2ykLO6t265026Xb6PY0q2UFQ==
+  dependencies:
+    "@types/levelup" "^4.3.0"
+    ethereumjs-util "^7.1.4"
+    level-mem "^5.0.1"
+    level-ws "^2.0.0"
+    readable-stream "^3.6.0"
+    semaphore-async-await "^1.5.1"
 
 micromatch@4.x, micromatch@^4.0.2:
   version "4.0.2"
@@ -7617,7 +7695,14 @@ mkdirp@0.x, mkdirp@^0.5.1:
   dependencies:
     minimist "0.0.8"
 
-mocha@^7.1.2:
+mnemonist@^0.38.0:
+  version "0.38.5"
+  resolved "https://registry.yarnpkg.com/mnemonist/-/mnemonist-0.38.5.tgz#4adc7f4200491237fe0fa689ac0b86539685cade"
+  integrity sha512-bZTFT5rrPKtPJxj8KSV0WkPyNxl72vQepqqVUAW2ARUpUSF2qXMB6jZj7hW5/k7C1rtpzqbD/IIbJwLXUjCHeg==
+  dependencies:
+    obliterator "^2.0.0"
+
+mocha@^7.2.0:
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/mocha/-/mocha-7.2.0.tgz#01cc227b00d875ab1eed03a75106689cfed5a604"
   integrity sha512-O9CIypScywTVpNaRrCAgoUnJgozpIofjKUYmJhiCIJMiuYnLI6otcb1/kpW9/n/tJODHGZ7i8aLQoDVsMtOKQQ==
@@ -7868,11 +7953,6 @@ object-keys@^1.0.11, object-keys@^1.0.12, object-keys@^1.1.1:
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.1.1.tgz#1c47f272df277f3b1daf061677d9c82e2322c60e"
   integrity sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA==
 
-object-keys@~0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-0.4.0.tgz#28a6aae7428dd2c3a92f3d95f21335dd204e0336"
-  integrity sha1-KKaq50KN0sOpLz2V8hM13SBOAzY=
-
 object-visit@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/object-visit/-/object-visit-1.0.1.tgz#f79c4493af0c5377b59fe39d395e41042dd045bb"
@@ -7930,7 +8010,7 @@ object.fromentries@^2.0.2:
     function-bind "^1.1.1"
     has "^1.0.3"
 
-object.getownpropertydescriptors@^2.0.3, object.getownpropertydescriptors@^2.1.1:
+object.getownpropertydescriptors@^2.0.3:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.1.1.tgz#0dfda8d108074d9c563e80490c883b6661091544"
   integrity sha512-6DtXgZ/lIZ9hqx4GtZETobXLR/ZLaa0aqV0kzbn80Rf8Z2e/XFnhA0I7p07N2wH8bBBltr2xQPi6sbKWAY2Eng==
@@ -7956,6 +8036,11 @@ object.values@^1.1.0, object.values@^1.1.1:
     function-bind "^1.1.1"
     has "^1.0.3"
 
+obliterator@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/obliterator/-/obliterator-2.0.2.tgz#25f50dc92e1181371b9d8209d11890f1a3c2fc21"
+  integrity sha512-g0TrA7SbUggROhDPK8cEu/qpItwH2LSKcNl4tlfBNT54XY+nOsqrs0Q68h1V9b3HOSpIWv15jb1lax2hAggdIg==
+
 once@^1.3.0, once@^1.3.1, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
@@ -8342,6 +8427,11 @@ pretty-format@^26.0.0, pretty-format@^26.6.2:
     ansi-styles "^4.0.0"
     react-is "^17.0.1"
 
+printj@~1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/printj/-/printj-1.3.1.tgz#9af6b1d55647a1587ac44f4c1654a4b95b8e12cb"
+  integrity sha512-GA3TdL8szPK4AQ2YnOe/b+Y1jUFwmmGMMK/qbY7VcE3Z7FU8JstbKiKRzO6CIiAKPhTO8m01NoQ0V5f3jc4OGg==
+
 process-nextick-args@~2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz#7820d9b16120cc55ca9ae7792680ae7dba6d7fe2"
@@ -8524,7 +8614,7 @@ read-pkg@^5.2.0:
     parse-json "^5.0.0"
     type-fest "^0.6.0"
 
-readable-stream@3, readable-stream@^3.0.0, readable-stream@^3.0.2, readable-stream@^3.0.6, readable-stream@^3.6.0:
+readable-stream@3, readable-stream@^3.0.0, readable-stream@^3.0.2, readable-stream@^3.1.0, readable-stream@^3.4.0, readable-stream@^3.6.0:
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
   integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
@@ -8533,17 +8623,7 @@ readable-stream@3, readable-stream@^3.0.0, readable-stream@^3.0.2, readable-stre
     string_decoder "^1.1.1"
     util-deprecate "^1.0.1"
 
-readable-stream@^1.0.33:
-  version "1.1.14"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
-  integrity sha1-fPTFTvZI44EwhMY23SB54WbAgdk=
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
-readable-stream@^2.0.0, readable-stream@^2.2.8, readable-stream@^2.3.6, readable-stream@~2.3.6:
+readable-stream@~2.3.6:
   version "2.3.7"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.7.tgz#1eca1cf711aef814c04f62252a36a62f6cb23b57"
   integrity sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==
@@ -8556,16 +8636,6 @@ readable-stream@^2.0.0, readable-stream@^2.2.8, readable-stream@^2.3.6, readable
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readable-stream@~1.0.15:
-  version "1.0.34"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
-  integrity sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
 readdirp@~3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-3.2.0.tgz#c30c33352b12c96dfb4b895421a49fd5a9593839"
@@ -8860,7 +8930,7 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^3.0.0"
     inherits "^2.0.1"
 
-rlp@^2.0.0, rlp@^2.2.1, rlp@^2.2.2, rlp@^2.2.3, rlp@^2.2.4:
+rlp@^2.2.3, rlp@^2.2.4:
   version "2.2.6"
   resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.6.tgz#c80ba6266ac7a483ef1e69e8e2f056656de2fb2c"
   integrity sha512-HAfAmL6SDYNWPUOJNrM500x4Thn4PZsEy5pijPh40U9WfNk0z15hUYzO9xVIMAdIHdFtD8CBDHd75Td1g36Mjg==
@@ -9019,10 +9089,10 @@ secp256k1@^4.0.1:
     node-addon-api "^2.0.0"
     node-gyp-build "^4.2.0"
 
-semaphore@>=1.0.1, semaphore@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/semaphore/-/semaphore-1.1.0.tgz#aaad8b86b20fe8e9b32b16dc2ee682a8cd26a8aa"
-  integrity sha512-O4OZEaNtkMd/K0i6js9SL+gqy0ZCBMgUvlSqHKi4IBdjhe7wB8pwztUk1BbZ1fmrvpwFrPbHzqd2w5pTcJH6LA==
+semaphore-async-await@^1.5.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/semaphore-async-await/-/semaphore-async-await-1.5.1.tgz#857bef5e3644601ca4b9570b87e9df5ca12974fa"
+  integrity sha1-hXvvXjZEYBykuVcLh+nfXKEpdPo=
 
 semver-compare@^1.0.0:
   version "1.0.0"
@@ -9056,11 +9126,6 @@ semver@^7.1.1, semver@^7.3.2:
   dependencies:
     lru-cache "^6.0.0"
 
-semver@~5.4.1:
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
-  integrity sha512-WfG/X9+oATh81XtllIo/I8gOiY9EXRdv1cQdyykeXK17YcUW3EXUAi2To4pcH6nZtJPr7ZOpM5OMyWJZm+8Rsg==
-
 serialize-javascript@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-2.1.2.tgz#ecec53b0e0317bdc95ef76ab7074b7384785fa61"
@@ -9471,11 +9536,6 @@ string_decoder@^1.1.1:
   dependencies:
     safe-buffer "~5.2.0"
 
-string_decoder@~0.10.x:
-  version "0.10.31"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
-  integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
-
 string_decoder@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
@@ -9966,7 +10026,7 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-tweetnacl-util@^0.15.0:
+tweetnacl-util@^0.15.1:
   version "0.15.1"
   resolved "https://registry.yarnpkg.com/tweetnacl-util/-/tweetnacl-util-0.15.1.tgz#b80fcdb5c97bcc508be18c44a4be50f022eea00b"
   integrity sha512-RKJBIj8lySrShN4w6i/BonWp2Z/uxwC3h4y7xsRrpP59ZboCd0GpEVsOnMDYLMmKBpYhb5TgHzZXy7wTfYFBRw==
@@ -9976,7 +10036,7 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
   integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
-tweetnacl@^1.0.0:
+tweetnacl@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.3.tgz#ac0af71680458d8a6378d0d0d050ab1407d35596"
   integrity sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==
@@ -10141,23 +10201,12 @@ util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
   integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=
 
-util.promisify@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/util.promisify/-/util.promisify-1.1.1.tgz#77832f57ced2c9478174149cae9b96e9918cd54b"
-  integrity sha512-/s3UsZUrIfa6xDhr7zZhnE9SLQ5RIXyYfiVnMMyMDzOc8WhWN4Nbh36H842OyurKbCDAesZOJaVyvmSl6fhGQw==
-  dependencies:
-    call-bind "^1.0.0"
-    define-properties "^1.1.3"
-    for-each "^0.3.3"
-    has-symbols "^1.0.1"
-    object.getownpropertydescriptors "^2.1.1"
-
 uuid@^3.3.2:
   version "3.4.0"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.4.0.tgz#b23e4358afa8a202fe7a100af1f5f883f02007ee"
   integrity sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==
 
-uuid@^8.3.0:
+uuid@^8.3.0, uuid@^8.3.2:
   version "8.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-8.3.2.tgz#80d5b5ced271bb9af6c445f21a1a04c606cefbe2"
   integrity sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==
@@ -10394,10 +10443,10 @@ ws@7.2.3:
   resolved "https://registry.yarnpkg.com/ws/-/ws-7.2.3.tgz#a5411e1fb04d5ed0efee76d26d5c46d830c39b46"
   integrity sha512-HTDl9G9hbkNDk98naoR/cHDws7+EyYMOdL1BmjsZXRUjf7d+MficC4B7HLUPlSiho0vg+CWKrGIt/VJBd1xunQ==
 
-ws@^7.0.0, ws@^7.2.1, ws@^7.2.3:
-  version "7.4.2"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.2.tgz#782100048e54eb36fe9843363ab1c68672b261dd"
-  integrity sha512-T4tewALS3+qsrpGI/8dqNMLIVdq/g/85U98HPMa6F0m6xTbvhXU6RCQLqPH3+SlomNV/LdY6RXEbBpMH6EOJnA==
+ws@^7.0.0, ws@^7.2.3, ws@^7.4.6:
+  version "7.5.7"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.7.tgz#9e0ac77ee50af70d58326ecff7e85eb3fa375e67"
+  integrity sha512-KMvVuFzpKBuiIXW3E4u3mySRO2/mCHSyZDJQM5NQ9Q9KHWHWh0NHgfbRMLLrceUK5qAL4ytALJbpRMjixFZh8A==
 
 xml-name-validator@^3.0.0:
   version "3.0.0"
@@ -10409,18 +10458,11 @@ xmlchars@^2.1.1, xmlchars@^2.2.0:
   resolved "https://registry.yarnpkg.com/xmlchars/-/xmlchars-2.2.0.tgz#060fe1bcb7f9c76fe2a17db86a9bc3ab894210cb"
   integrity sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==
 
-xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0, xtend@~4.0.1:
+xtend@^4.0.1, xtend@^4.0.2, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
-xtend@~2.1.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-2.1.2.tgz#6efecc2a4dad8e6962c4901b337ce7ba87b5d28b"
-  integrity sha1-bv7MKk2tjmlixJAbM3znuoe10os=
-  dependencies:
-    object-keys "~0.4.0"
-
 y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"