diff --git a/LICENSE.md b/LICENSE.md
index f971aed2..f970816c 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,4 +1,4 @@
-Copyright 2019, 2020, 2021, 2022 mintsuki and contributors.
+Copyright (C) 2019-2023 mintsuki and contributors.
 
 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: