diff --git a/www/package.json b/www/package.json
old mode 100755
new mode 100644
index 68585da47..daf528aa0
--- a/www/package.json
+++ b/www/package.json
@@ -76,6 +76,6 @@
     "style-loader": "^0.13.1",
     "url-loader": "^0.5.9",
     "webpack": "3.5.0",
-    "webpack-dev-server": "2.2.0"
+    "webpack-dev-server": "5.2.1"
   }
 }