diff --git a/demo/index.html b/demo/index.html
index 29bfdf66..e1727b54 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -30,7 +30,6 @@
     <script src="main.js"> </script>
     <script src="/webpack-dev-server.js"></script>
     <script src="/polyfills.js"></script>
-    <script src="/vendor.js"></script>
     <script src="/redoc.js"></script>
   </body>
 </html>