diff --git a/common/tool/action_manager.cpp b/common/tool/action_manager.cpp
index 1e338b2b6b..89fe1c0092 100644
--- a/common/tool/action_manager.cpp
+++ b/common/tool/action_manager.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013 CERN
+ * Copyright (C) 2013-2023 CERN
  * Copyright (C) 2019-2021 KiCad Developers, see AUTHORS.txt for contributors.
  * @author Maciej Suminski <maciej.suminski@cern.ch>
  *
diff --git a/common/tool/actions.cpp b/common/tool/actions.cpp
index d79dfac8cf..c81c0acebf 100644
--- a/common/tool/actions.cpp
+++ b/common/tool/actions.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2019 CERN
+ * Copyright (C) 2019-2023 CERN
  * Copyright (C) 2021-2023 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/common/tool/tool_action.cpp b/common/tool/tool_action.cpp
index b88817ae49..706c9dbfff 100644
--- a/common/tool/tool_action.cpp
+++ b/common/tool/tool_action.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013 CERN
+ * Copyright (C) 2013-2023 CERN
  * Copyright (C) 2023 KiCad Developers, see AUTHORS.txt for contributors.
  * @author Maciej Suminski <maciej.suminski@cern.ch>
  *
diff --git a/common/tool/tool_event.cpp b/common/tool/tool_event.cpp
index 0185c32cbf..a2bd1182e3 100644
--- a/common/tool/tool_event.cpp
+++ b/common/tool/tool_event.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013 CERN
+ * Copyright (C) 2013-2023 CERN
  * Copyright (C) 2023 KiCad Developers, see AUTHORS.txt for contributors.
  * @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
  *
diff --git a/common/tool/tool_manager.cpp b/common/tool/tool_manager.cpp
index 4b99c99c55..e397d5301d 100644
--- a/common/tool/tool_manager.cpp
+++ b/common/tool/tool_manager.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013-2018 CERN
+ * Copyright (C) 2013-2023 CERN
  * Copyright (C) 2019-2023 KiCad Developers, see AUTHORS.txt for contributors.
  * @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
  * @author Maciej Suminski <maciej.suminski@cern.ch>
diff --git a/cvpcb/tools/cvpcb_actions.cpp b/cvpcb/tools/cvpcb_actions.cpp
index cd3eb42551..da05ce8db9 100644
--- a/cvpcb/tools/cvpcb_actions.cpp
+++ b/cvpcb/tools/cvpcb_actions.cpp
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2017 Jon Evans <jon@craftyjon.com>
  * Copyright (C) 2017-2019 KiCad Developers, see AUTHORS.txt for contributors.
+ * Copyright (C) 2023 CERN
  *
  * 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 the
diff --git a/gerbview/tools/gerbview_actions.cpp b/gerbview/tools/gerbview_actions.cpp
index c905e0a1a0..f3032900c2 100644
--- a/gerbview/tools/gerbview_actions.cpp
+++ b/gerbview/tools/gerbview_actions.cpp
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2017 Jon Evans <jon@craftyjon.com>
  * Copyright (C) 2017-2022 KiCad Developers, see AUTHORS.txt for contributors.
+ * Copyright (C) 2023 CERN
  *
  * 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 the
diff --git a/include/tool/tool_action.h b/include/tool/tool_action.h
index 10de4f3d7d..9f14ec0d4e 100644
--- a/include/tool/tool_action.h
+++ b/include/tool/tool_action.h
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013-2015 CERN
+ * Copyright (C) 2013-2023 CERN
  * Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
diff --git a/include/tool/tool_event.h b/include/tool/tool_event.h
index 1dd52655ed..dba8badee3 100644
--- a/include/tool/tool_event.h
+++ b/include/tool/tool_event.h
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013 CERN
+ * Copyright (C) 2013-2023 CERN
  * Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
diff --git a/include/tool/tool_manager.h b/include/tool/tool_manager.h
index c056a5950f..e260ade1c2 100644
--- a/include/tool/tool_manager.h
+++ b/include/tool/tool_manager.h
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013 CERN
+ * Copyright (C) 2013-2023 CERN
  * Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
diff --git a/kicad/tools/kicad_manager_actions.cpp b/kicad/tools/kicad_manager_actions.cpp
index 5a9e10a7c9..f1f28b1382 100644
--- a/kicad/tools/kicad_manager_actions.cpp
+++ b/kicad/tools/kicad_manager_actions.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2019 CERN
+ * Copyright (C) 2019-2023 CERN
  * Copyright (C) 2019 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/pagelayout_editor/tools/pl_actions.cpp b/pagelayout_editor/tools/pl_actions.cpp
index 3afde79a04..7c72eb4731 100644
--- a/pagelayout_editor/tools/pl_actions.cpp
+++ b/pagelayout_editor/tools/pl_actions.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2019 CERN
+ * Copyright (C) 2019-2023 CERN
  * Copyright (C) 2019 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/pcbnew/tools/pcb_actions.cpp b/pcbnew/tools/pcb_actions.cpp
index b532411609..d3147c1d37 100644
--- a/pcbnew/tools/pcb_actions.cpp
+++ b/pcbnew/tools/pcb_actions.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013-2016 CERN
+ * Copyright (C) 2013-2023 CERN
  * Copyright (C) 2016-2023 KiCad Developers, see AUTHORS.txt for contributors.
  * @author Maciej Suminski <maciej.suminski@cern.ch>
  *