1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 38140d4d..a12cef08 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ This includes cartographic projections as well as geodetic transformations.
 
 For more information on the PROJ.4 project please see the web page at:
 
-http://proj4.org/
+https://proj4.org/
 
 The PROJ.4 mailing list can be found at: