diff --git a/cp/resources/views/layouts/app.twig b/cp/resources/views/layouts/app.twig
index ae4bcd2..0c198e0 100644
--- a/cp/resources/views/layouts/app.twig
+++ b/cp/resources/views/layouts/app.twig
@@ -14,7 +14,7 @@
       }
     </style>
   </head>
-  <body class="layout-fluid{% if screen_mode == 'dark' %} theme-dark{% endif %}">
+  <body class="layout-fluid"{% if screen_mode == 'dark' %} data-bs-theme="dark"{% endif %}>
     <div class="page">
       <!-- Navbar -->
       <header class="navbar navbar-expand-md navbar-light d-print-none">
