diff --git a/Copyleft.txt b/Copyleft.txt
index abc353d..523751c 100644
--- a/Copyleft.txt
+++ b/Copyleft.txt
@@ -1,4 +1,4 @@
-Copyleft (C) 2019-now rimer
+Copyleft (C) 2019-$(date +%Y) rimer
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by