diff --git a/package.json b/package.json
index 9b60dd1..ab65d2d 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
   "devDependencies": {
     "ava": "^0.11.0",
     "babel": "^5.8.33",
-    "babel-core": "^5.8.33",
+    "babel-core": "^6.5.0",
     "babel-eslint": "^4.1.5",
     "coveralls": "^2.11.4",
     "cz-conventional-changelog": "^1.1.4",