diff --git a/package.json b/package.json
index bf4f632..c337813 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "lodash.uniq": "^4.3.0",
     "resolve": "^1.3.3",
     "semver": "^5.3.0",
-    "uglify-js": "^2.8.22",
+    "uglify-js": "^3.0.12",
     "when": "^3.7.8"
   },
   "devDependencies": {