diff --git a/package-lock.json b/package-lock.json
index 89066d6..41d9e89 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8178,9 +8178,9 @@
       "integrity": "sha1-/RSDyPusYYCPX+NZ52k6H0ilgzE="
     },
     "protobufjs": {
-      "version": "6.8.5",
-      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-6.8.5.tgz",
-      "integrity": "sha512-QoM3FNRV+IuaQ9EKtkQtH2nrsSkwelJCcpxCai0atqq78iwlHP3NppH+6XgmiBbS9vAJWF/UU8q/wE7OfB2WuQ==",
+      "version": "6.8.6",
+      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-6.8.6.tgz",
+      "integrity": "sha512-eH2OTP9s55vojr3b7NBaF9i4WhWPkv/nq55nznWNp/FomKrLViprUcqnBjHph2tFQ+7KciGPTPsVWGz0SOhL0Q==",
       "requires": {
         "@protobufjs/aspromise": "^1.1.2",
         "@protobufjs/base64": "^1.1.2",
diff --git a/package.json b/package.json
index 53aefaf..5db5ef5 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "bytebuffer": "5.0.1",
     "documentation": "5.4.0",
     "lodash": "4.17.5",
-    "protobufjs": "6.8.5",
+    "protobufjs": "6.8.6",
     "ws": "4.1.0"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 08d159a..675d913 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -313,11 +313,7 @@
     "@types/istanbul-reports" "^1.1.1"
     "@types/yargs" "^13.0.0"
 
-"@protobufjs/aspromise@^1.1.1":
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/@protobufjs/aspromise/-/aspromise-1.1.1.tgz#22526b2959bbc8dcc531dfcf569a9e2a1eeb3e1f"
-
-"@protobufjs/aspromise@^1.1.2":
+"@protobufjs/aspromise@^1.1.1", "@protobufjs/aspromise@^1.1.2":
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/@protobufjs/aspromise/-/aspromise-1.1.2.tgz#9b8b0cc663d669a7d8f6f5d0893a14d348f30fbf"
 
@@ -6278,9 +6274,9 @@ property-information@^3.1.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/property-information/-/property-information-3.2.0.tgz#fd1483c8fbac61808f5fe359e7693a1f48a58331"
 
-protobufjs@6.8.5:
-  version "6.8.5"
-  resolved "https://registry.yarnpkg.com/protobufjs/-/protobufjs-6.8.5.tgz#ca064d0b1b52327b3ff9e3bb74de3624e08e5fe2"
+protobufjs@6.8.6:
+  version "6.8.6"
+  resolved "https://registry.yarnpkg.com/protobufjs/-/protobufjs-6.8.6.tgz#ce3cf4fff9625b62966c455fc4c15e4331a11ca2"
   dependencies:
     "@protobufjs/aspromise" "^1.1.2"
     "@protobufjs/base64" "^1.1.2"