diff --git a/package.json b/package.json
index 817f79c..0c4bfce 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "filewatcher": "3.0.0",
     "mime": "1.2.11",
     "ready-signal": "1.3.0",
-    "uglify-js": "2.5.0"
+    "uglify-js": "3.6.8"
   },
   "devDependencies": {
     "through": "2.3.4",