diff --git a/package.json b/package.json
index 57e6e8bdd..62b97b725 100644
--- a/package.json
+++ b/package.json
@@ -258,7 +258,7 @@
     "chokidar": "^1.4.1",
     "colors": "^1.1.0",
     "connect": "^3.3.5",
-    "core-js": "^2.0.3",
+    "core-js": "^2.1.0",
     "di": "^0.0.1",
     "dom-serialize": "^2.2.0",
     "expand-braces": "^0.1.1",