diff --git a/radicale/auth/ldap.py b/radicale/auth/ldap.py
index a8e94794..a4c8f38c 100644
--- a/radicale/auth/ldap.py
+++ b/radicale/auth/ldap.py
@@ -1,5 +1,6 @@
 # This file is part of Radicale - CalDAV and CardDAV server
-# Copyright 2022 Peter Varkoly
+# Copyright © 2022-2024 Peter Varkoly
+# Copyright © 2024-2024 Peter Bieringer <pb@bieringer.de>
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by