diff --git a/layouts/col4-equal.html.twig b/layouts/col4-equal.html.twig
index 0a03e91bfd3264112b6ff5382807a3f6194ea37e..89a53b16ef088a61c0e1ab91d948690e4ea25c76 100644
--- a/layouts/col4-equal.html.twig
+++ b/layouts/col4-equal.html.twig
@@ -19,19 +19,19 @@
       </div>
     {% endif %}
 
-    <div{{ region_attributes.first.addClass('col-sm-3', 'col-sm-6') }}>
+    <div{{ region_attributes.first.addClass('col-md-3', 'col-sm-6') }}>
       {{ content.first }}
     </div>
 
-    <div{{ region_attributes.second.addClass('col-sm-3', 'col-sm-6') }}>
+    <div{{ region_attributes.second.addClass('col-md-3', 'col-sm-6') }}>
       {{ content.second }}
     </div>
 
-    <div{{ region_attributes.third.addClass('col-sm-3', 'col-sm-6') }}>
+    <div{{ region_attributes.third.addClass('col-md-3', 'col-sm-6') }}>
       {{ content.third }}
     </div>
 
-    <div{{ region_attributes.fourth.addClass('col-sm-3', 'col-sm-6') }}>
+    <div{{ region_attributes.fourth.addClass('col-md-3', 'col-sm-6') }}>
       {{ content.fourth }}
     </div>