diff --git a/qtgui/horizontalpiano.py b/qtgui/horizontalpiano.py
index e143ec9..a0ee57e 100644
--- a/qtgui/horizontalpiano.py
+++ b/qtgui/horizontalpiano.py
@@ -1,7 +1,7 @@
 #! /usr/bin/env python3
 # -*- coding: utf-8 -*-
 """
-Copyright 2021, Nils Hilbricht, Germany ( https://www.hilbricht.net )
+Copyright 2022, Nils Hilbricht, Germany ( https://www.hilbricht.net )
 
 This file is part of the Laborejo Software Suite ( https://www.laborejo.org ),
 
diff --git a/qtgui/verticalpiano.py b/qtgui/verticalpiano.py
index 4b1dc43..398108d 100644
--- a/qtgui/verticalpiano.py
+++ b/qtgui/verticalpiano.py
@@ -1,7 +1,7 @@
 #! /usr/bin/env python3
 # -*- coding: utf-8 -*-
 """
-Copyright 2021, Nils Hilbricht, Germany ( https://www.hilbricht.net )
+Copyright 2022, Nils Hilbricht, Germany ( https://www.hilbricht.net )
 
 This file is part of the Laborejo Software Suite ( https://www.laborejo.org ),