diff --git a/README b/README
index 92e3ca0f48..f6e92464c2 100644
--- a/README
+++ b/README
@@ -17,7 +17,7 @@ BUG REPORTS:
         https://github.com/systemd/systemd/issues
 
 OLDER DOCUMENTATION:
-        http://0pointer.de/blog/projects/systemd.html
+        https://0pointer.de/blog/projects/systemd.html
         https://www.freedesktop.org/wiki/Software/systemd
 
 AUTHOR: