diff --git a/document.cpp b/document.cpp
index 78aa32b..4da4def 100644
--- a/document.cpp
+++ b/document.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/document.h b/document.h
index f548440..15c60ce 100644
--- a/document.h
+++ b/document.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/keymap.h b/keymap.h
index 42befcb..49043c1 100644
--- a/keymap.h
+++ b/keymap.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/levelonecommands.cpp b/levelonecommands.cpp
index fc16169..d867b2c 100644
--- a/levelonecommands.cpp
+++ b/levelonecommands.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/levelonecommands.h b/levelonecommands.h
index a66fea5..ab08bf8 100644
--- a/levelonecommands.h
+++ b/levelonecommands.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/levelonepage.cpp b/levelonepage.cpp
index 3c42726..7b4fef7 100644
--- a/levelonepage.cpp
+++ b/levelonepage.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/levelonepage.h b/levelonepage.h
index 5856670..1b0a257 100644
--- a/levelonepage.h
+++ b/levelonepage.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/loadsave.cpp b/loadsave.cpp
index 7fef441..f973102 100644
--- a/loadsave.cpp
+++ b/loadsave.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/loadsave.h b/loadsave.h
index c1d8a05..4fc7011 100644
--- a/loadsave.h
+++ b/loadsave.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/main.cpp b/main.cpp
index 6649771..5d5e8fd 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/mainwidget.cpp b/mainwidget.cpp
index c5ba646..98b0247 100644
--- a/mainwidget.cpp
+++ b/mainwidget.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/mainwidget.h b/mainwidget.h
index 235c334..50a94f0 100644
--- a/mainwidget.h
+++ b/mainwidget.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/mainwindow.cpp b/mainwindow.cpp
index e054013..2702289 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -213,7 +213,7 @@ void MainWindow::about()
 	QMessageBox::about(this, tr("About"), QString("<b>%1</b><br>"
 	"An open source Level 2.5 teletext page editor.<br>"
 	"<i>Version %2</i><br><br>"
-	"Copyright (C) 2020, 2021 Gavin MacGregor<br><br>"
+	"Copyright (C) 2020-2022 Gavin MacGregor<br><br>"
 	"Released under the GNU General Public License version 3<br>"
 	"<a href=\"https://github.com/gkthemac/qteletextmaker\">https://github.com/gkthemac/qteletextmaker</a>").arg(QApplication::applicationDisplayName()).arg(QApplication::applicationVersion()));
 }
diff --git a/mainwindow.h b/mainwindow.h
index c4f5150..cba9822 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/pagebase.cpp b/pagebase.cpp
index a94205d..782fa1f 100644
--- a/pagebase.cpp
+++ b/pagebase.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/pagebase.h b/pagebase.h
index 3a3f8ea..ef0408c 100644
--- a/pagebase.h
+++ b/pagebase.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/pageenhancementsdockwidget.cpp b/pageenhancementsdockwidget.cpp
index 9108c03..ce720a2 100644
--- a/pageenhancementsdockwidget.cpp
+++ b/pageenhancementsdockwidget.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/pageenhancementsdockwidget.h b/pageenhancementsdockwidget.h
index 7650db4..8dbdc75 100644
--- a/pageenhancementsdockwidget.h
+++ b/pageenhancementsdockwidget.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/pageoptionsdockwidget.cpp b/pageoptionsdockwidget.cpp
index 21dccbf..a56ed6a 100644
--- a/pageoptionsdockwidget.cpp
+++ b/pageoptionsdockwidget.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/pageoptionsdockwidget.h b/pageoptionsdockwidget.h
index 7827534..201c3dd 100644
--- a/pageoptionsdockwidget.h
+++ b/pageoptionsdockwidget.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/pagex26base.cpp b/pagex26base.cpp
index 03445ec..19bcaaa 100644
--- a/pagex26base.cpp
+++ b/pagex26base.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/pagex26base.h b/pagex26base.h
index f8d3f18..f61db63 100644
--- a/pagex26base.h
+++ b/pagex26base.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/palettedockwidget.cpp b/palettedockwidget.cpp
index 543fa41..553371d 100644
--- a/palettedockwidget.cpp
+++ b/palettedockwidget.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/palettedockwidget.h b/palettedockwidget.h
index 27cd3c2..4a901f2 100644
--- a/palettedockwidget.h
+++ b/palettedockwidget.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/render.cpp b/render.cpp
index 6491346..f451e7f 100644
--- a/render.cpp
+++ b/render.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/render.h b/render.h
index 24c3a17..3bc1877 100644
--- a/render.h
+++ b/render.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/x26commands.cpp b/x26commands.cpp
index 4c56e5c..59170be 100644
--- a/x26commands.cpp
+++ b/x26commands.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/x26commands.h b/x26commands.h
index 2168e10..d490ad9 100644
--- a/x26commands.h
+++ b/x26commands.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/x26dockwidget.cpp b/x26dockwidget.cpp
index b375080..7c0eea6 100644
--- a/x26dockwidget.cpp
+++ b/x26dockwidget.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/x26dockwidget.h b/x26dockwidget.h
index 87d3abb..d18cde2 100644
--- a/x26dockwidget.h
+++ b/x26dockwidget.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/x26model.cpp b/x26model.cpp
index fb02d67..8c2cda8 100644
--- a/x26model.cpp
+++ b/x26model.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/x26model.h b/x26model.h
index e489f05..1037213 100644
--- a/x26model.h
+++ b/x26model.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/x26triplets.cpp b/x26triplets.cpp
index 9782df1..10699f5 100644
--- a/x26triplets.cpp
+++ b/x26triplets.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
diff --git a/x26triplets.h b/x26triplets.h
index 41f3443..c26a5da 100644
--- a/x26triplets.h
+++ b/x26triplets.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2022 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *