diff --git a/cast-receiver/package.json b/cast-receiver/package.json
index 92ede5ade..ace8c817f 100644
--- a/cast-receiver/package.json
+++ b/cast-receiver/package.json
@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "@babel/core": "^7.10.5",
-    "@babel/plugin-proposal-class-properties": "^7.8.3",
+    "@babel/plugin-proposal-class-properties": "^7.10.4",
     "@babel/preset-env": "^7.9.6",
     "@babel/preset-typescript": "^7.9.0",
     "@types/chromecast-caf-receiver": "^5.0.5",
diff --git a/cast-receiver/yarn.lock b/cast-receiver/yarn.lock
index 4b2ced518..456af459b 100644
--- a/cast-receiver/yarn.lock
+++ b/cast-receiver/yarn.lock
@@ -92,17 +92,17 @@
     levenary "^1.1.1"
     semver "^5.5.0"
 
-"@babel/helper-create-class-features-plugin@^7.8.3", "@babel/helper-create-class-features-plugin@^7.9.6":
-  version "7.9.6"
-  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.9.6.tgz#965c8b0a9f051801fd9d3b372ca0ccf200a90897"
-  integrity sha512-6N9IeuyHvMBRyjNYOMJHrhwtu4WJMrYf8hVbEHD3pbbbmNOk1kmXSQs7bA4dYDUaIx4ZEzdnvo6NwC3WHd/Qow==
+"@babel/helper-create-class-features-plugin@^7.10.4", "@babel/helper-create-class-features-plugin@^7.9.6":
+  version "7.10.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.10.5.tgz#9f61446ba80e8240b0a5c85c6fdac8459d6f259d"
+  integrity sha512-0nkdeijB7VlZoLT3r/mY3bUkw3T8WG/hNw+FATs/6+pG2039IJWjTYL0VTISqsNHMUTEnwbVnc89WIJX9Qed0A==
   dependencies:
-    "@babel/helper-function-name" "^7.9.5"
-    "@babel/helper-member-expression-to-functions" "^7.8.3"
-    "@babel/helper-optimise-call-expression" "^7.8.3"
-    "@babel/helper-plugin-utils" "^7.8.3"
-    "@babel/helper-replace-supers" "^7.9.6"
-    "@babel/helper-split-export-declaration" "^7.8.3"
+    "@babel/helper-function-name" "^7.10.4"
+    "@babel/helper-member-expression-to-functions" "^7.10.5"
+    "@babel/helper-optimise-call-expression" "^7.10.4"
+    "@babel/helper-plugin-utils" "^7.10.4"
+    "@babel/helper-replace-supers" "^7.10.4"
+    "@babel/helper-split-export-declaration" "^7.10.4"
 
 "@babel/helper-create-regexp-features-plugin@^7.8.3", "@babel/helper-create-regexp-features-plugin@^7.8.8":
   version "7.8.8"
@@ -169,7 +169,7 @@
   dependencies:
     "@babel/types" "^7.8.3"
 
-"@babel/helper-member-expression-to-functions@^7.10.4":
+"@babel/helper-member-expression-to-functions@^7.10.4", "@babel/helper-member-expression-to-functions@^7.10.5":
   version "7.10.5"
   resolved "https://registry.yarnpkg.com/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.10.5.tgz#172f56e7a63e78112f3a04055f24365af702e7ee"
   integrity sha512-HiqJpYD5+WopCXIAbQDG0zye5XYVvcO9w/DHp5GsaGkRUaamLj2bEtu6i8rnGGprAhHM3qidCMgp71HF4endhA==
@@ -224,10 +224,10 @@
   dependencies:
     "@babel/types" "^7.8.3"
 
-"@babel/helper-plugin-utils@^7.0.0", "@babel/helper-plugin-utils@^7.8.0", "@babel/helper-plugin-utils@^7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz#9ea293be19babc0f52ff8ca88b34c3611b208670"
-  integrity sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==
+"@babel/helper-plugin-utils@^7.0.0", "@babel/helper-plugin-utils@^7.10.4", "@babel/helper-plugin-utils@^7.8.0", "@babel/helper-plugin-utils@^7.8.3":
+  version "7.10.4"
+  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.10.4.tgz#2f75a831269d4f677de49986dff59927533cf375"
+  integrity sha512-O4KCvQA6lLiMU9l2eawBPMf1xPP8xPfB3iEQw150hOVTqj/rfXz0ThTb4HEzqQfs2Bmo5Ay8BzxfzVtBrr9dVg==
 
 "@babel/helper-regex@^7.8.3":
   version "7.8.3"
@@ -257,7 +257,7 @@
     "@babel/traverse" "^7.10.4"
     "@babel/types" "^7.10.4"
 
-"@babel/helper-replace-supers@^7.8.3", "@babel/helper-replace-supers@^7.8.6", "@babel/helper-replace-supers@^7.9.6":
+"@babel/helper-replace-supers@^7.8.3", "@babel/helper-replace-supers@^7.8.6":
   version "7.9.6"
   resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.9.6.tgz#03149d7e6a5586ab6764996cd31d6981a17e1444"
   integrity sha512-qX+chbxkbArLyCImk3bWV+jB5gTNU/rsze+JlcF6Nf8tVTigPJSI1o1oBow/9Resa1yehUO9lIipsmu9oG4RzA==
@@ -344,13 +344,13 @@
     "@babel/helper-remap-async-to-generator" "^7.8.3"
     "@babel/plugin-syntax-async-generators" "^7.8.0"
 
-"@babel/plugin-proposal-class-properties@^7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.8.3.tgz#5e06654af5cd04b608915aada9b2a6788004464e"
-  integrity sha512-EqFhbo7IosdgPgZggHaNObkmO1kNUe3slaKu54d5OWvy+p9QIKOzK1GAEpAIsZtWVtPXUHSMcT4smvDrCfY4AA==
+"@babel/plugin-proposal-class-properties@^7.10.4":
+  version "7.10.4"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.10.4.tgz#a33bf632da390a59c7a8c570045d1115cd778807"
+  integrity sha512-vhwkEROxzcHGNu2mzUC0OFFNXdZ4M23ib8aRRcJSsW8BZK9pQMD7QB7csl97NBbgGZO7ZyHUyKDnxzOaP4IrCg==
   dependencies:
-    "@babel/helper-create-class-features-plugin" "^7.8.3"
-    "@babel/helper-plugin-utils" "^7.8.3"
+    "@babel/helper-create-class-features-plugin" "^7.10.4"
+    "@babel/helper-plugin-utils" "^7.10.4"
 
 "@babel/plugin-proposal-dynamic-import@^7.8.3":
   version "7.8.3"