diff --git a/package.json b/package.json
index 237bc43133..44316b310e 100644
--- a/package.json
+++ b/package.json
@@ -115,6 +115,8 @@
     "@types/webfontloader": "1.6.27",
     "angular2-template-loader": "0.6.0",
     "autoprefixer": "6.5.4",
+    "ajv": "4.2.0",
+    "ajv-keywords": "1.1.1",
     "awesome-typescript-loader": "2.2.4",
     "codelyzer": "2.0.0-beta.3",
     "concurrently": "3.1.0",
@@ -160,10 +162,10 @@
     "typedoc": "0.5.1",
     "typescript": "2.0.10",
     "v8-lazy-parse-webpack-plugin": "0.3.0",
-    "webpack": "2.2.0-rc.3",
+    "webpack": "2.1.0-beta.27",
     "webpack-bundle-analyzer": "1.4.1",
     "webpack-dev-middleware": "1.9.0",
-    "webpack-dev-server": "2.2.0-rc.0",
+    "webpack-dev-server": "2.1.0-beta.11",
     "webpack-merge": "1.1.1"
   }
 }
diff --git a/webpack.config.ts b/webpack.config.ts
index e6128264b1..065ac1cf6e 100644
--- a/webpack.config.ts
+++ b/webpack.config.ts
@@ -68,10 +68,6 @@ export var commonConfig = {
     ],
   },
 
-  performance: {
-    hints: false
-  },
-
   plugins: [
     // Use commonPlugins.
   ]
diff --git a/webpack.test.config.js b/webpack.test.config.js
index 4f3530e8de..cd288ce894 100644
--- a/webpack.test.config.js
+++ b/webpack.test.config.js
@@ -166,10 +166,6 @@ module.exports = function (options) {
       ]
     },
 
-    performance: {
-      hints: false
-    },
-
     /**
      * Add additional plugins to the compiler.
      *