diff --git a/package.json b/package.json
index 2e69156ae1b3..b78f88df30d8 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     }
   ]
   , "devDependencies": {
-      "uglify-js": "1.2.6"
+      "uglify-js": "2.6.0"
     , "jshint": "0.6.1"
     , "recess": "1.0.3"
     , "connect": "2.1.3"