diff --git a/package.json b/package.json
index 6e0b8d5..5566a4a 100644
--- a/package.json
+++ b/package.json
@@ -97,7 +97,7 @@
     "regenerator": "^0.12.2",
     "require-globify": "^1.3.0",
     "typescript": "^2.6.2",
-    "uglify-js": "3.2.2",
+    "uglify-js": "3.3.1",
     "watch": "^1.0.0"
   }
 }