diff --git a/package.json b/package.json
index 65790fd..3b2e27b 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
     "rimraf": "^2.6.0",
     "semver": "^5.3.0",
     "shelljs": "^0.7.6",
-    "uglifyjs-webpack-plugin": "^1.3.0",
+    "uglifyjs-webpack-plugin": "^2.1.0",
     "url-loader": "^0.5.8",
     "vue": "^2.5.17",
     "vue-jest": "^3.0.1",