diff --git a/SerialPort.cpp b/SerialPort.cpp
index ff07f7d..75c7309 100644
--- a/SerialPort.cpp
+++ b/SerialPort.cpp
@@ -15,7 +15,7 @@
 *   Copyright (C) 2016 by Colin Durbridge G4EML
 *   Copyright (C) 2016,2017,2018,2019 by Andy Uribe CA6JAU
 *   Copyright (C) 2019 by Florian Wolters DF2ET
-*   Copyright (C) 2017-2021 Bryan Biedenkapp N2PLL
+*   Copyright (C) 2017-2022 Bryan Biedenkapp N2PLL
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
diff --git a/SerialPort.h b/SerialPort.h
index 85bc35d..b788bee 100644
--- a/SerialPort.h
+++ b/SerialPort.h
@@ -13,7 +13,7 @@
 /*
 *   Copyright (C) 2015,2016,2018,2020,2021 by Jonathan Naylor G4KLX
 *   Copyright (C) 2018 by Andy Uribe CA6JAU
-*   Copyright (C) 2018,2021 Bryan Biedenkapp N2PLL
+*   Copyright (C) 2018,2021-2022 Bryan Biedenkapp N2PLL
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
diff --git a/SerialSTM.cpp b/SerialSTM.cpp
index e969ca0..faf7946 100644
--- a/SerialSTM.cpp
+++ b/SerialSTM.cpp
@@ -13,7 +13,7 @@
 /*
 *   Copyright (C) 2016 by Jim McLaughlin KI6ZUM
 *   Copyright (C) 2016,2017,2018,2019 by Andy Uribe CA6JAU
-*   Copyright (C) 2021 Bryan Biedenkapp N2PLL
+*   Copyright (C) 2021-2022 Bryan Biedenkapp N2PLL
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by