diff --git a/package.json b/package.json
index 6f1b8c7..e756e3e 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "grunt-contrib-jshint": "~1.1.0",
     "grunt-contrib-nodeunit": "~1.0.0",
     "grunt-contrib-qunit": "~1.3.0",
-    "grunt-contrib-uglify": "~2.1.0",
+    "grunt-contrib-uglify": "~2.2.0",
     "grunt-contrib-watch": "~1.0.0"
   },
   "lib": ".",