Update link to Columbia Games.HEADmaster

1 files changed, 1 insertions, 1 deletions

diff --git a/about.html b/about.html
index 7c7eef0..11ac438 100644
--- a/about.html
+++ b/about.html
@@ -6,7 +6,7 @@ play key roles.
 
 <p>
 Designer: Justin Thompson and Grant Dalgliesh.
-<br> Copyright &copy; 2010 <a href="https://columbiagames.com/cgi-bin/query/cfg/zoom.cfg?product_id=3121">Columbia Games</a>.
+<br> Copyright &copy; 2010 <a href="https://secure.columbiagames.com/product/3121">Columbia Games</a>.
 <br> Programming &copy; 2021 Tor Andersson.
 
 <ul>