diff --git a/package.json b/package.json
index b8defba..8a583ec 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "coveralls": "2.11.8",
     "grunt": "0.4.5",
     "grunt-contrib-jshint": "1.0.0",
-    "grunt-contrib-uglify": "1.0.1",
+    "grunt-contrib-uglify": "2.2.1",
     "plato": "1.5.0"
   },
   "dependencies": {