diff --git a/resources/views/layouts/moons/b4.blade.php b/resources/views/layouts/moons/b4.blade.php
index 3dadc091b..2c0f8dcd9 100644
--- a/resources/views/layouts/moons/b4.blade.php
+++ b/resources/views/layouts/moons/b4.blade.php
@@ -20,7 +20,7 @@
         <meta name="csrf-token" content="{{ csrf_token() }}">
 
         <!-- Bootstrap CSS -->
-        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/css/bootstrap.min.css" integrity="sha384-Smlep5jCw/wG7hdkwQ/Z5nLIefveQRIY9nfy6xoR1uRYBtpZgI6339F5dgvm/e9B" crossorigin="anonymous">
+        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
        
         <link rel="stylesheet" href="{{ asset('css/app.css') }}">
         <!--<link rel="stylesheet" href="{{ asset('css/bootstrap.min.css') }}"> -->