diff --git a/app/polymer/package.json b/app/polymer/package.json
index d6e2435e99c9..561088cb42e6 100644
--- a/app/polymer/package.json
+++ b/app/polymer/package.json
@@ -30,7 +30,7 @@
     "@storybook/ui": "3.4.0-rc.2",
     "@webcomponents/webcomponentsjs": "^1.1.0",
     "airbnb-js-shims": "^1.4.1",
-    "babel-loader": "^7.1.4",
+    "babel-loader": "^8.2.4",
     "babel-plugin-macros": "^2.2.0",
     "babel-plugin-transform-regenerator": "^6.26.0",
     "babel-plugin-transform-runtime": "^6.23.0",
@@ -41,20 +41,20 @@
     "babel-runtime": "^6.26.0",
     "case-sensitive-paths-webpack-plugin": "^2.1.2",
     "common-tags": "^1.4.0",
-    "copy-webpack-plugin": "^4.5.1",
+    "copy-webpack-plugin": "^6.0.0",
     "core-js": "^2.5.1",
     "dotenv-webpack": "^1.5.5",
     "find-cache-dir": "^1.0.0",
     "global": "^4.3.2",
-    "html-webpack-plugin": "^2.30.1",
-    "json5": "^0.5.1",
+    "html-webpack-plugin": "^5.0.0",
+    "json5": "^2.2.2",
     "react": "^16.0.0",
     "react-dev-utils": "^5.0.0",
     "react-dom": "^16.0.0",
     "redux": "^3.7.2",
     "uglifyjs-webpack-plugin": "^1.2.3",
     "util-deprecate": "^1.0.2",
-    "webpack": "^3.11.0",
+    "webpack": "^5.0.0",
     "webpack-hot-middleware": "^2.21.2"
   },
   "devDependencies": {