diff --git a/package.json b/package.json
index c535317..3136599 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   },
   "devDependencies": {
     "babel": "^6.1.18",
-    "babel-core": "^6.2.1",
+    "babel-core": "^6.6.5",
     "babel-loader": "^6.2.1",
     "babel-plugin-transform-async-to-generator": "^6.1.18",
     "babel-plugin-transform-runtime": "^6.1.18",