diff --git a/matrix/404.html b/matrix/404.html
index 11bb18c..7635634 100644
--- a/matrix/404.html
+++ b/matrix/404.html
@@ -20,7 +20,7 @@
     <title>404 Not Found</title>
     <link
       rel="stylesheet"
-      href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.3.2/css/bootstrap.min.css"
+      href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.3.3/css/bootstrap.min.css"
     />
     <link rel="stylesheet" href="./css/404.css" />
   </head>
diff --git a/restriction/404.html b/restriction/404.html
index 910fcc3..b267d82 100644
--- a/restriction/404.html
+++ b/restriction/404.html
@@ -22,7 +22,7 @@
     <title>404 Not found</title>
     <link
       rel="stylesheet"
-      href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.3.2/css/bootstrap.min.css"
+      href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.3.3/css/bootstrap.min.css"
     />
     <link rel="stylesheet" href="css/404.css" />
   </head>