diff --git a/package.json b/package.json
index 3b89d5362..6bc6d915a 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "gulp-size": "^2.1.0",
     "gulp-spawn-mocha": "^2.2.2",
     "gulp-tag-version": "^1.3.0",
-    "gulp-uglify": "^1.5.4",
+    "gulp-uglify": "^2.0.0",
     "gulp-util": "^3.0.7",
     "https-browserify": "0.0.1",
     "json-loader": "^0.5.4",