diff --git a/tinyfilemanager.php b/tinyfilemanager.php
index 513670d..dcbc414 100644
--- a/tinyfilemanager.php
+++ b/tinyfilemanager.php
@@ -3511,7 +3511,7 @@ $isStickyNavBar = $sticky_navbar ? 'navbar-fixed' : 'navbar-normal';
     <meta name="googlebot" content="noindex">
     <?php if($favicon_path) { echo '<link rel="icon" href="'.fm_enc($favicon_path).'" type="image/png">'; } ?>
     <title><?php echo fm_enc(APP_TITLE) ?></title>
-    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.6.0/css/bootstrap.min.css">
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/ekko-lightbox/5.3.0/ekko-lightbox.css" />
     <?php if (FM_USE_HIGHLIGHTJS): ?>