diff --git a/README.md b/README.md
index 049898d..a2264c5 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ submodules.
 
 - **source-code**: `planetblupi/`
 - **source-assets**: `planetblupi-data/`
-- **website**: `planetblupi-www/` (see <http://www.blupi.org>)
+- **website**: `planetblupi-www/` (see <https://www.blupi.org>)
 
 ### Linux