diff --git a/package.json b/package.json
index 71a5e10..38f2327 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,6 @@
     "tests"
   ],
   "devDependencies": {
-    "uglify-js": "3.3.25"
+    "uglify-js": "3.13.10"
   }
 }