diff --git a/ckanext/rvr/templates/group/snippets/group_item.html b/ckanext/rvr/templates/group/snippets/group_item.html
index 097a993..5035abb 100644
--- a/ckanext/rvr/templates/group/snippets/group_item.html
+++ b/ckanext/rvr/templates/group/snippets/group_item.html
@@ -17,7 +17,7 @@
     <li class="media-item">
       {% block item_inner %}
       {% block image %}
-        <img src="{{ group.image_display_url or h.url_for_static('/base/images/placeholder-group.png') }}" alt="{{ group.name }}" class="media-image img-responsive">
+        <img src="{{ group.image_display_url or h.url_for_static('/base/images/placeholder-group.png') }}" alt="{{ group.name }}" class="media-image img-fluid">
       {% endblock %}
       {% block title %}
         <h2 class="media-heading">{{ group.display_name }}</h2>
@@ -47,4 +47,4 @@ <h2 class="media-heading">{{ group.display_name }}</h2>
     {% endblock %}
     {% if position is divisibleby 3 %}
       <li class="clearfix js-hide"></li>
-    {% endif %}
\ No newline at end of file
+    {% endif %}