diff --git a/website/templates/base.html b/website/templates/base.html
index fbbd3854..e74cd63a 100644
--- a/website/templates/base.html
+++ b/website/templates/base.html
@@ -52,7 +52,7 @@
     {% else %}
     <div class="alert alert-success alter-dismissable fade show" role="alert">
       {{ message }}
-      <button type="button" class="close" data-dismiss="alert">
+      <button type="button" class="close" data-bs-dismiss="alert">
         <span aria-hidden="true">&times;</span>
       </button>
     </div>