diff --git a/COPYING b/COPYING
index 69f02d6..3d387a1 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-Copyright (c) 2014-2021 SANO Masatoshi
+Copyright (c) 2014-2022 SANO Masatoshi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/debian/copyright b/debian/copyright
index e039586..74f831e 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -3,7 +3,7 @@ Upstream-Name: roswell
 Source: https://github.com/roswell/roswell
 
 Files: *
-Copyright: 2014-2021 SANO Masatoshi
+Copyright: 2014-2022 SANO Masatoshi
 
 License: MIT