diff --git a/core/LICENSE.TXT b/core/LICENSE.TXT
index 31fc84333..a06056587 100644
--- a/core/LICENSE.TXT
+++ b/core/LICENSE.TXT
@@ -1,6 +1,6 @@
 OpenRocket - A model rocket simulator
 
-Copyright (C) 2007-2013 Sampo Niskanen and others
+Copyright (C) 2007-2020 Sampo Niskanen and others
 
 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