diff --git a/modules/cgal/README.md b/modules/cgal/README.md
index 7f2ba2dddf..6f25190f4d 100644
--- a/modules/cgal/README.md
+++ b/modules/cgal/README.md
@@ -1,4 +1,4 @@
-\brief Make [CGAL](http://www.cgal.org) functionality available to IMP.
+\brief Make [CGAL](https://www.cgal.org) functionality available to IMP.
 
 # CGAL # {#CGAL}