diff --git a/app/index.html b/app/index.html
index 85b7013..8bba94d 100644
--- a/app/index.html
+++ b/app/index.html
@@ -3,7 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <link rel="icon" href="/favicon.ico" />
-    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
     <title>Chat Nio</title>
     <meta name="keywords" content="ChatGPT, ChatNio, chatnio">
     <meta name="description" content="👋 Chat Nio, Your Next Powerful AI Chat Platform. Creating Possibilities in the World of AI Chat.">
