diff --git a/web/index.html b/web/index.html
index 9282d00..ef5c38f 100644
--- a/web/index.html
+++ b/web/index.html
@@ -5,7 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
     <title>IP History</title>
     <link rel="stylesheet" href="style.css">
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js" integrity="sha512-v2CJ7UaYy4JwqLDIrZUI/4hqeoQieOmAZNXBeQyjo21dadnwR+8ZaIJVT8EE2iyI61OV8e6M8PP2/4hpQINQ/g==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
     <script src="script.js"></script>
     <link rel="stylesheet" href="style.css">
 </head>