diff --git a/package.json b/package.json
index 1a8663f..6df97a8 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "rollup-plugin-replace": "^1.1.1",
     "rollupify": "^0.3.4",
     "send": "^0.13.2",
-    "uglify-js": "^2.6.2",
+    "uglify-js": "^3.0.14",
     "watchify": "^3.7.0"
   },
   "peerDependencies": {