diff --git a/_includes/footer.html b/_includes/footer.html
index 2632b24..b8cb4d0 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -3,7 +3,7 @@
     <div class="col-md-4">
         <ul>
             <li>
-                <a href="http://chaospott.de">
+                <a href="https://chaospott.de">
                     Chaospott - foobar e.V.<br>
                     Sibyllastrasse 9<br>
                     45136 Essen