diff --git a/package.json b/package.json
index ed294d51d..f76b6942e 100644
--- a/package.json
+++ b/package.json
@@ -267,7 +267,7 @@
     "colors": "^1.1.0",
     "combine-lists": "^1.0.0",
     "connect": "^3.3.5",
-    "core-js": "^2.1.0",
+    "core-js": "^2.2.0",
     "di": "^0.0.1",
     "dom-serialize": "^2.2.0",
     "expand-braces": "^0.1.1",