diff --git a/about/tenmon b/about/tenmon
index 84e6f91..8d6baf2 100644
--- a/about/tenmon
+++ b/about/tenmon
@@ -2,7 +2,7 @@
 <td style="padding-right:10px"><img src=":/space.nouspiro.tenmon.png"></td>
 <td><h3>Tenmon</h3>
 Tenmon is FITS/XISF image viewer and converter. It also index FITS keywords.<br>
-v@GITVERSION@ Copyright © 2022 Dušan Poizl<br><br>
+v@GITVERSION@ Copyright © 2026 Dušan Poizl<br><br>
 
 This program is free software: you can redistribute it and/or modify<br>
 it under the terms of the GNU General Public License as published by<br>