1 files changed, 1 insertions, 1 deletions
diff --git a/_base.html b/_base.html
index c165b54..a2b42b2 100644
--- a/_base.html
+++ b/_base.html
@@ -41,7 +41,7 @@
     <footer>
       {{ site.url }}
       |
-      <a href="http://www.gnu.org/copyleft/fdl.html">GFDL</a> 2013
+      <a href="https://www.gnu.org/copyleft/fdl.html">GFDL</a> 2013
       |
       <a href="mailto:spline@spline.de">spline@spline.de</a>
     </footer>