diff --git a/COPYING b/COPYING
index 4b06cc4..b08b759 100644
--- a/COPYING
+++ b/COPYING
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2022 aikiriao <samuraiaiki@gmail.com>
+Copyright (c) 2023 aikiriao <samuraiaiki@gmail.com>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal