diff --git a/COPYING b/COPYING
index 5b35f69f26..0621b4a8e6 100644
--- a/COPYING
+++ b/COPYING
@@ -1,6 +1,7 @@
 Unless specified otherwise, the entirety of this repository is subject to the following:
 Copyright © 2014-2023 syuilo and contributors
 Copyright © 2022-2023 Kainoa Kanter and contributors
+Copyright © 2024 Firefish contributors
 
 And is distributed under The GNU Affero General Public License Version 3, you should have received a copy of the license file as LICENSE.
 
@@ -13,6 +14,7 @@ These specific configuration directories:
 
 and their contents are
 Copyright © 2022-2023 Kainoa Kanter and contributors
+Copyright © 2024 Firefish contributors
 
 And are distributed under The Apache License, Version 2.0, you should have received a copy of the license file as LICENSE in each specified directory.
 
diff --git a/packages/firefish-js/LICENSE b/packages/firefish-js/LICENSE
index 243af42d34..a889556c28 100644
--- a/packages/firefish-js/LICENSE
+++ b/packages/firefish-js/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021-2023 Kainoa Kanter, Firefish contributors, Syuilo, and misskey-js contributors
+Copyright (c) 2021-2024 Firefish contributors, Kainoa Kanter, Syuilo, and misskey-js contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal