diff --git a/ifcbdb/templates/base.html b/ifcbdb/templates/base.html
index cf542c2e..1016ea32 100644
--- a/ifcbdb/templates/base.html
+++ b/ifcbdb/templates/base.html
@@ -99,7 +99,7 @@
                 <div class="col-sm-12">
                 <ul class="nav justify-content-center">
                     <li class="nav-item">
-                <span class="px-2">Version 5.0 - January 2026</span>
+                <span class="px-2">Version 5.1 - March 2026</span>
             </li>
             <li class="nav-item">
                 <a class="px-2" href="{% url 'about_page' %}">About</a>