diff --git a/mozillians/jinja2/base.html b/mozillians/jinja2/base.html
index 006237f71..9baa9af56 100644
--- a/mozillians/jinja2/base.html
+++ b/mozillians/jinja2/base.html
@@ -162,6 +162,11 @@
                   </div>
                 {% endwith %}
               {% endfor %}
+              <div class="alert alert-warning">
+                <p>Mozillians.org will be moving datacenter.</p>
+                <p>This change is expected to occur on 22 JUN 2017 and we anticipate minimal downtime.</p>
+                <p>All users and API consumers of mozillians.org will be affected. Please accept our apologies for any service interruption.</p>
+              </div>
             {% endblock messages %}
             {% block content %}{% endblock %}
             <a href="#" id="back-to-top">