diff --git a/package.json b/package.json
index a7d723ed39..67a71b5c47 100644
--- a/package.json
+++ b/package.json
@@ -44,6 +44,7 @@
   },
   "devDependencies": {
     "babel-cli": "6.6.0",
+    "babel-core": "6.6.0",
     "babel-eslint": "5.0.0",
     "babel-plugin-transform-object-rest-spread": "6.5.0",
     "babel-plugin-transform-runtime": "6.6.0",