diff --git a/package.json b/package.json
index 589e861a..2aaca358 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "string-replace-webpack-plugin": "^0.1.3",
     "stylus": "^0.54.5",
     "sugar-date": "2.0.6",
-    "uglifyjs-webpack-plugin": "2.1.3",
+    "uglifyjs-webpack-plugin": "2.2.0",
     "webpack": "^4.38.0",
     "webpack-cli": "^3.0.8",
     "webpack-dev-server": "^3.1.11"