diff --git a/package.json b/package.json
index 39f323d..e10066f 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "grunt": "^1.0.0",
     "grunt-cli": "^1.0.0",
     "grunt-contrib-clean": "^1.0.0",
-    "grunt-contrib-uglify": "^1.0.0",
+    "grunt-contrib-uglify": "^2.0.0",
     "grunt-contrib-watch": "^1.0.0",
     "grunt-jsduck": "^1.0.0",
     "grunt-karma": "^1.0.0",