diff --git a/debian/copyright b/debian/copyright
index 6f58c7f..319aca7 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -4,7 +4,7 @@ Upstream-Name: lua-ngcp-kamailio
 
 Files: *
 Copyright: 2013-2021 Sipwise GmbH, Austria
-License: GPL-3.0+
+License: GPL-3+
  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
  the Free Software Foundation, either version 3 of the License, or