diff --git a/package.json b/package.json
index 0f8ee49..952181a 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "mocha": "~1.20.1",
     "nock": "^0.43.0",
     "request": "^2.51.0",
-    "uglify-js": "~2.4.15",
+    "uglify-js": "~3.6.8",
     "watchify": "^1.0.1"
   },
   "keywords": [