diff --git a/app/polymer/package.json b/app/polymer/package.json
index ba5a756e04e3..8db8a2c9bbab 100644
--- a/app/polymer/package.json
+++ b/app/polymer/package.json
@@ -25,7 +25,7 @@
     "@storybook/addons": "^3.4.0-alpha.4",
     "@storybook/channel-postmessage": "^3.4.0-alpha.4",
     "@storybook/client-logger": "^3.4.0-alpha.4",
-    "@storybook/core": "^3.4.0-alpha.4",
+    "@storybook/core": "^6.2.0",
     "@storybook/node-logger": "^3.4.0-alpha.4",
     "@storybook/ui": "^3.4.0-alpha.4",
     "@webcomponents/webcomponentsjs": "^1.0.17",
@@ -33,7 +33,7 @@
     "autoprefixer": "^7.1.6",
     "babel-core": "^6.26.0",
     "babel-loader": "^7.1.2",
-    "babel-plugin-react-docgen": "^1.8.2",
+    "babel-plugin-react-docgen": "^4.0.0",
     "babel-plugin-transform-regenerator": "^6.26.0",
     "babel-plugin-transform-runtime": "^6.23.0",
     "babel-polyfill": "^6.26.0",
@@ -76,7 +76,7 @@
     "url-loader": "^0.6.2",
     "util-deprecate": "^1.0.2",
     "uuid": "^3.2.0",
-    "webpack": "^3.6.0",
+    "webpack": "^4.0.0",
     "webpack-dev-middleware": "^1.12.0",
     "webpack-hot-middleware": "^2.20.0"
   },