diff --git a/core/copyright.tid b/core/copyright.tid
index ffc8c4ac0..da72136c4 100644
--- a/core/copyright.tid
+++ b/core/copyright.tid
@@ -4,7 +4,7 @@ type: text/plain
 TiddlyWiki created by Jeremy Ruston, (jeremy [at] jermolene [dot] com)
 
 Copyright (c) 2004-2007, Jeremy Ruston
-Copyright (c) 2007-2020, UnaMesa Association
+Copyright (c) 2007-2021, UnaMesa Association
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without