diff --git a/package.json b/package.json
index 6002482..3498d1c 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,6 @@
     "bower-webpack-plugin": "^0.1.9",
     "chai": "^3.2.0",
     "copyfiles": "^0.2.1",
-    "core-js": "^1.2.6",
     "css-loader": "^0.23.0",
     "eslint": "^1.2.1",
     "eslint-loader": "^1.0.0",
@@ -76,6 +75,7 @@
     "webpack-dev-server": "^1.12.0"
   },
   "dependencies": {
+    "core-js": "^1.2.6",
     "normalize.css": "^3.0.3",
     "react": "^0.14.0",
     "react-dom": "^0.14.0"