Closes #25910: fix dead and permanently redirected links in the docs. Thanks to SilentGhost for the patch.
diff --git a/Doc/using/mac.rst b/Doc/using/mac.rst
index 97d7129..0352648 100644
--- a/Doc/using/mac.rst
+++ b/Doc/using/mac.rst
@@ -153,7 +153,7 @@
*PyQt* is another popular cross-platform GUI toolkit that runs natively on Mac
OS X. More information can be found at
-http://www.riverbankcomputing.co.uk/software/pyqt/intro.
+https://riverbankcomputing.com/software/pyqt/intro.
Distributing Python Applications on the Mac