diff --git a/package.json b/package.json
index 922c1ebc0d..04a9b59173 100644
--- a/package.json
+++ b/package.json
@@ -86,7 +86,7 @@
     "swagger-jsdoc": "1.9.4",
     "tslint": "5.3.2",
     "uglify-es": "3.0.11",
-    "uglify-js": "git+https://github.com/mishoo/UglifyJS2.git#harmony",
+    "uglify-js": "git+https://github.com/mishoo/UglifyJS2.git#harmony-v2.8.22",
     "uglifyjs-webpack-plugin": "0.4.3",
     "webpack": "2.6.0"
   },