diff --git a/package.json b/package.json
index 510ffc63..63352ed9 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "i18next": "^19.8.2",
     "i18next-browser-languagedetector": "^6.0.1",
     "i18next-http-backend": "^1.0.21",
-    "immer": "^6.0.2",
+    "immer": "^8.0.1",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "react-i18next": "^11.7.3",
diff --git a/yarn.lock b/yarn.lock
index ea87859c..ff6eb29e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2159,6 +2159,11 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.17.44.tgz#3945e6b702cb6403f22b779c8ea9e5c3f44ead40"
   integrity sha512-vHPAyBX1ffLcy4fQHmDyIUMUb42gHZjPHU66nhvbMzAWJqHnySGZ6STwN3rwrnSd1FHB0DI/RWgGELgKSYRDmw==
 
+"@types/node@^14.14.14":
+  version "14.14.22"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.22.tgz#0d29f382472c4ccf3bd96ff0ce47daf5b7b84b18"
+  integrity sha512-g+f/qj/cNcqKkc3tFqlXOYjrmZA+jNBiDzbP3kH+B+otKFqAdPgVTGP1IeKRdMml/aE69as5S4FqtxAbl+LaMw==
+
 "@types/normalize-package-data@^2.4.0":
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/@types/normalize-package-data/-/normalize-package-data-2.4.0.tgz#e486d0d97396d79beedd0a6e33f4534ff6b4973e"
@@ -2253,6 +2258,13 @@
   resolved "https://registry.yarnpkg.com/@types/retry/-/retry-0.12.0.tgz#2b35eccfcee7d38cd72ad99232fbd58bffb3c84d"
   integrity sha512-wWKOClTTiizcZhXnPY4wikVAwmdYHp8q6DmC+EJUzAMsycb7HB32Kh9RN4+0gExjmPmZSAQjgURXIGATPegAvA==
 
+"@types/sax@^1.2.1":
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/@types/sax/-/sax-1.2.1.tgz#e0248be936ece791a82db1a57f3fb5f7c87e8172"
+  integrity sha512-dqYdvN7Sbw8QT/0Ci5rhjE4/iCMJEM0Y9rHpCu+gGXD9Lwbz28t6HI2yegsB6BoV1sShRMU6lAmAcgRjmFy7LA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/source-list-map@*":
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/@types/source-list-map/-/source-list-map-0.1.2.tgz#0078836063ffaf17412349bba364087e0ac02ec9"
@@ -2820,6 +2832,11 @@ are-we-there-yet@~1.1.2:
     delegates "^1.0.0"
     readable-stream "^2.0.6"
 
+arg@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/arg/-/arg-5.0.0.tgz#a20e2bb5710e82950a516b3f933fee5ed478be90"
+  integrity sha512-4P8Zm2H+BRS+c/xX1LrHw0qKpEhdlZjLCgWy+d78T9vqa2Z2SiD2wMrYuWIAFy5IZUD7nnNXroRttz+0RzlrzQ==
+
 argparse@^1.0.7:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
@@ -8190,10 +8207,10 @@ image-q@^1.1.1:
   resolved "https://registry.yarnpkg.com/image-q/-/image-q-1.1.1.tgz#fc84099664460b90ca862d9300b6bfbbbfbf8056"
   integrity sha1-/IQJlmRGC5DKhi2TALa/u7+/gFY=
 
-immer@^6.0.2:
-  version "6.0.9"
-  resolved "https://registry.yarnpkg.com/immer/-/immer-6.0.9.tgz#b9dd69b8e69b3a12391e87db1e3ff535d1b26485"
-  integrity sha512-SyCYnAuiRf67Lvk0VkwFvwtDoEiCMjeamnHvRfnVDyc7re1/rQrNxuL+jJ7lA3WvdC4uznrvbmm+clJ9+XXatg==
+immer@^8.0.1:
+  version "8.0.1"
+  resolved "https://registry.yarnpkg.com/immer/-/immer-8.0.1.tgz#9c73db683e2b3975c424fb0572af5889877ae656"
+  integrity sha512-aqXhGP7//Gui2+UrEtvxZxSquQVXTpZ7KDxfCcKAF3Vysvw0CViVaW9RZ1j1xlIYqaaaipBoqdqeibkc18PNvA==
 
 import-fresh@^3.0.0, import-fresh@^3.1.0:
   version "3.2.1"
@@ -12462,6 +12479,13 @@ react-router-dom@^5.1.2:
     tiny-invariant "^1.0.2"
     tiny-warning "^1.0.0"
 
+react-router-sitemap@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/react-router-sitemap/-/react-router-sitemap-1.2.0.tgz#4a32ddf7a1adbb3ad3c59a4e3e5338ca00b4febb"
+  integrity sha512-3aETwxCFTGHsGbXpyh7sr+c/WDr0q1rpng0M4pgoV6Owl3673buejPHGvzDmZEdiqhRa+I0znRDneKRc1NC06Q==
+  dependencies:
+    sitemap "^1.6.0"
+
 react-router@5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/react-router/-/react-router-5.2.0.tgz#424e75641ca8747fbf76e5ecca69781aa37ea293"
@@ -13271,7 +13295,7 @@ sanitize-filename@^1.6.0:
   dependencies:
     truncate-utf8-bytes "^1.0.0"
 
-sax@>=0.6.0, sax@~1.2.4:
+sax@>=0.6.0, sax@^1.2.4, sax@~1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
@@ -13601,6 +13625,24 @@ sisteransi@^1.0.5:
   resolved "https://registry.yarnpkg.com/sisteransi/-/sisteransi-1.0.5.tgz#134d681297756437cc05ca01370d3a7a571075ed"
   integrity sha512-bLGGlR1QxBcynn2d5YmDX4MGjlZvy2MRBDRNHLJ8VI6l6+9FUiyTFNJ0IveOSP0bcXgVDPRcfGqA0pjaqUpfVg==
 
+sitemap@^1.6.0:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/sitemap/-/sitemap-1.13.0.tgz#569cbe2180202926a62a266cd3de09c9ceb43f83"
+  integrity sha1-Vpy+IYAgKSamKiZs094Jyc60P4M=
+  dependencies:
+    underscore "^1.7.0"
+    url-join "^1.1.0"
+
+sitemap@^6.3.3:
+  version "6.3.5"
+  resolved "https://registry.yarnpkg.com/sitemap/-/sitemap-6.3.5.tgz#3d39618fa149f95303c151b8f884046695219c3f"
+  integrity sha512-uLz8c5nI31bd4/+nccVWhJx18JxLF+1bAKhhxMv0IYKClSK8wWtANKsl9FOluqmz37ObeBLGVVgNOpg3r+yz/g==
+  dependencies:
+    "@types/node" "^14.14.14"
+    "@types/sax" "^1.2.1"
+    arg "^5.0.0"
+    sax "^1.2.4"
+
 slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
@@ -15024,6 +15066,11 @@ umask@^1.1.0, umask@~1.1.0:
   resolved "https://registry.yarnpkg.com/umask/-/umask-1.1.0.tgz#f29cebf01df517912bb58ff9c4e50fde8e33320d"
   integrity sha1-8pzr8B31F5ErtY/5xOUP3o4zMg0=
 
+underscore@^1.7.0:
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.12.0.tgz#4814940551fc80587cef7840d1ebb0f16453be97"
+  integrity sha512-21rQzss/XPMjolTiIezSu3JAjgagXKROtNrYFEOWK109qY1Uv2tVjPTZ1ci2HgvQDA16gHYSthQIJfB+XId/rQ==
+
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz#2619800c4c825800efdd8343af7dd9933cbe2818"
@@ -15175,6 +15222,11 @@ urix@^0.1.0:
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
   integrity sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=
 
+url-join@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/url-join/-/url-join-1.1.0.tgz#741c6c2f4596c4830d6718460920d0c92202dc78"
+  integrity sha1-dBxsL0WWxIMNZxhGCSDQySIC3Hg=
+
 url-join@^2.0.5:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"