diff --git a/doc/number.xml b/doc/number.xml
index 933c6bc..4e0770a 100644
--- a/doc/number.xml
+++ b/doc/number.xml
@@ -2,7 +2,7 @@
 <!--                                                                     -->
 <!--  number.xml          Utils documentation                Stefan Kohl -->
 <!--                                                                     -->
-<!--  Copyright (C) 2015-2015, The GAP Group,                            --> 
+<!--  Copyright (C) 2015-2025, The GAP Group,                            -->
 <!--                                                                     -->
 <!-- ------------------------------------------------------------------- -->