diff --git a/package.json b/package.json
index 91f97aa..cc3727a 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "grunt-peg": "1.4.0",
     "grunt-component-build": "0.5.3",
     "grunt-mocha-phantomjs": "0.2.8",
-    "grunt-contrib-uglify": "0.2.7",
+    "grunt-contrib-uglify": "2.2.1",
     "grunt-contrib-coffee": "0.7.0"
   },
   "dependencies": {