diff --git a/package.json b/package.json
index 7a9d219b7..1e9b2a54d 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "grunt-contrib-jshint": "~3.0.0",
     "grunt-contrib-jst": "~2.0.0",
     "grunt-contrib-less": "~3.0.0",
-    "grunt-contrib-uglify": "~5.0.0",
+    "grunt-contrib-uglify": "~5.2.2",
     "grunt-contrib-watch": "~1.1.0",
     "grunt-docco": "~0.5.0",
     "grunt-eslint": "^23.0.0",