diff --git a/package.json b/package.json
index bbe1019ca..273588d22 100644
--- a/package.json
+++ b/package.json
@@ -47,6 +47,7 @@
     "css-loader": "^0.28.4",
     "eslint": "^4.3.0",
     "expose-loader": "^0.7.3",
+    "extract-text-webpack-plugin": "^3.0.0",
     "file-loader": "^0.11.2",
     "font-awesome-webpack": "0.0.5-beta.2",
     "jest": "^20.0.4",
@@ -57,6 +58,7 @@
     "sass-loader": "^6.0.6",
     "style-loader": "^0.18.2",
     "url-loader": "^0.5.9",
-    "webpack": "^3.3.0"
+    "webpack": "^3.3.0",
+    "window": "^4.1.0"
   }
 }