diff --git a/config/webpack.js b/config/webpack.js
index <HASH>..<HASH> 100644
--- a/config/webpack.js
+++ b/config/webpack.js
@@ -116,7 +116,8 @@ const shared = {
   },
   timeout: 80000,
   plugins: [
-    new webpack.DefinePlugin({'fs.writeSync': false})
+    new webpack.DefinePlugin({'fs.writeSync': false}),
+    new webpack.optimize.DedupePlugin()
   ]
 }
feat(webpack): enable dedupe plugin