diff --git a/package.json b/package.json
index 5fe6578..20a91bb 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "grunt-contrib-clean": "^0.7.0",
     "grunt-contrib-concat": "^0.5.1",
     "grunt-contrib-connect": "^0.11.2",
-    "grunt-contrib-uglify": "^0.11.0",
+    "grunt-contrib-uglify": "^2.0.0",
     "grunt-contrib-watch": "^0.6.1",
     "grunt-istanbul": "^0.6.1",
     "grunt-karma": "^0.12.1",