diff --git a/js/components/tinymce/package.json b/js/components/tinymce/package.json
old mode 100755
new mode 100644
index 5c9336f..36317be
--- a/js/components/tinymce/package.json
+++ b/js/components/tinymce/package.json
@@ -66,7 +66,7 @@
     "tslint": "^5.9.1",
     "typescript": "^3.1.5",
     "webpack": "^4.8.3",
-    "webpack-dev-server": "3.1.5",
+    "webpack-dev-server": "3.9.0",
     "webpack-livereload-plugin": "^2.1.1"
   },
   "dependencies": {