diff --git a/package.json b/package.json
index 40ab9d141e0..33d748cfc11 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
   "devDependencies": {
     "@babel/cli": "^7.12.10",
     "@babel/core": "^7.13.8",
-    "@babel/plugin-proposal-class-properties": "^7.12.1",
+    "@babel/plugin-proposal-class-properties": "^7.13.0",
     "@babel/plugin-proposal-nullish-coalescing-operator": "^7.13.8",
     "@babel/plugin-proposal-object-rest-spread": "^7.12.1",
     "@babel/plugin-proposal-optional-chaining": "^7.12.7",
diff --git a/playground/package.json b/playground/package.json
index 32004400000..93d04b03936 100644
--- a/playground/package.json
+++ b/playground/package.json
@@ -23,7 +23,7 @@
   },
   "devDependencies": {
     "@babel/core": "7.13.8",
-    "@babel/plugin-proposal-class-properties": "^7.12.1",
+    "@babel/plugin-proposal-class-properties": "^7.13.0",
     "@babel/plugin-proposal-decorators": "^7.12.12",
     "@babel/plugin-transform-runtime": "^7.12.10",
     "@babel/preset-env": "^7.12.11",
diff --git a/yarn.lock b/yarn.lock
index da794a41e2c..26b7c092b98 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -214,16 +214,16 @@
     browserslist "^4.14.5"
     semver "^6.3.0"
 
-"@babel/helper-create-class-features-plugin@^7.12.1":
-  version "7.12.1"
-  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.12.1.tgz#3c45998f431edd4a9214c5f1d3ad1448a6137f6e"
-  integrity sha512-hkL++rWeta/OVOBTRJc9a5Azh5mt5WgZUGAKMD8JM141YsE08K//bp1unBBieO6rUKkIPyUE0USQ30jAy3Sk1w==
+"@babel/helper-create-class-features-plugin@^7.12.1", "@babel/helper-create-class-features-plugin@^7.13.0":
+  version "7.13.8"
+  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.13.8.tgz#0367bd0a7505156ce018ca464f7ac91ba58c1a04"
+  integrity sha512-qioaRrKHQbn4hkRKDHbnuQ6kAxmmOF+kzKGnIfxPK4j2rckSJCpKzr/SSTlohSCiE3uAQpNDJ9FIh4baeE8W+w==
   dependencies:
-    "@babel/helper-function-name" "^7.10.4"
-    "@babel/helper-member-expression-to-functions" "^7.12.1"
-    "@babel/helper-optimise-call-expression" "^7.10.4"
-    "@babel/helper-replace-supers" "^7.12.1"
-    "@babel/helper-split-export-declaration" "^7.10.4"
+    "@babel/helper-function-name" "^7.12.13"
+    "@babel/helper-member-expression-to-functions" "^7.13.0"
+    "@babel/helper-optimise-call-expression" "^7.12.13"
+    "@babel/helper-replace-supers" "^7.13.0"
+    "@babel/helper-split-export-declaration" "^7.12.13"
 
 "@babel/helper-create-regexp-features-plugin@^7.12.1":
   version "7.12.1"
@@ -499,13 +499,13 @@
     "@babel/helper-remap-async-to-generator" "^7.12.1"
     "@babel/plugin-syntax-async-generators" "^7.8.0"
 
-"@babel/plugin-proposal-class-properties@^7.1.0", "@babel/plugin-proposal-class-properties@^7.12.1":
-  version "7.12.1"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.12.1.tgz#a082ff541f2a29a4821065b8add9346c0c16e5de"
-  integrity sha512-cKp3dlQsFsEs5CWKnN7BnSHOd0EOW8EKpEjkoz1pO2E5KzIDNV9Ros1b0CnmbVgAGXJubOYVBOGCT1OmJwOI7w==
+"@babel/plugin-proposal-class-properties@^7.1.0", "@babel/plugin-proposal-class-properties@^7.12.1", "@babel/plugin-proposal-class-properties@^7.13.0":
+  version "7.13.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.13.0.tgz#146376000b94efd001e57a40a88a525afaab9f37"
+  integrity sha512-KnTDjFNC1g+45ka0myZNvSBFLhNCLN+GeGYLDEA8Oq7MZ6yMgfLoIRh86GRT0FjtJhZw8JyUskP9uvj5pHM9Zg==
   dependencies:
-    "@babel/helper-create-class-features-plugin" "^7.12.1"
-    "@babel/helper-plugin-utils" "^7.10.4"
+    "@babel/helper-create-class-features-plugin" "^7.13.0"
+    "@babel/helper-plugin-utils" "^7.13.0"
 
 "@babel/plugin-proposal-decorators@^7.12.1", "@babel/plugin-proposal-decorators@^7.12.12":
   version "7.12.12"
@@ -9149,9 +9149,9 @@ engine.io-client@~3.4.0:
     yeast "0.1.2"
 
 engine.io-client@~3.5.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.5.0.tgz#fc1b4d9616288ce4f2daf06dcf612413dec941c7"
-  integrity sha512-12wPRfMrugVw/DNyJk34GQ5vIVArEcVMXWugQGGuw2XxUSztFNmJggZmv8IZlLyEdnpO1QB9LkcjeWewO2vxtA==
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.5.1.tgz#b500458a39c0cd197a921e0e759721a746d0bdb9"
+  integrity sha512-oVu9kBkGbcggulyVF0kz6BV3ganqUeqXvD79WOFKa+11oK692w1NyFkuEj4xrkFRpZhn92QOqTk4RQq5LiBXbQ==
   dependencies:
     component-emitter "~1.3.0"
     component-inherit "0.0.3"