diff --git a/src/Mod/Fem/feminout/readFenicsXDMF.py b/src/Mod/Fem/feminout/readFenicsXDMF.py
index 99ff68cd27..fc7c1ca2a6 100644
--- a/src/Mod/Fem/feminout/readFenicsXDMF.py
+++ b/src/Mod/Fem/feminout/readFenicsXDMF.py
@@ -1,5 +1,5 @@
 # ***************************************************************************
-# *   Copyright (c) 2017 Johannes Hartung <j.hartung@gmx.net>               *
+# *   Copyright (c) 2017-2023 Johannes Hartung <j.hartung@gmx.net>          *
 # *                                                                         *
 # *   This file is part of the FreeCAD CAx development system.              *
 # *                                                                         *
diff --git a/src/Mod/Fem/feminout/readFenicsXML.py b/src/Mod/Fem/feminout/readFenicsXML.py
index 6594bbb484..49e67896a3 100644
--- a/src/Mod/Fem/feminout/readFenicsXML.py
+++ b/src/Mod/Fem/feminout/readFenicsXML.py
@@ -1,5 +1,5 @@
 # ***************************************************************************
-# *   Copyright (c) 2017 Johannes Hartung <j.hartung@gmx.net>               *
+# *   Copyright (c) 2017-2023 Johannes Hartung <j.hartung@gmx.net>          *
 # *                                                                         *
 # *   This file is part of the FreeCAD CAx development system.              *
 # *                                                                         *
diff --git a/src/Mod/Fem/feminout/writeFenicsXDMF.py b/src/Mod/Fem/feminout/writeFenicsXDMF.py
index 7975fd3735..ac193cf4af 100644
--- a/src/Mod/Fem/feminout/writeFenicsXDMF.py
+++ b/src/Mod/Fem/feminout/writeFenicsXDMF.py
@@ -1,5 +1,5 @@
 # ***************************************************************************
-# *   Copyright (c) 2017 Johannes Hartung <j.hartung@gmx.net>               *
+# *   Copyright (c) 2017-2023 Johannes Hartung <j.hartung@gmx.net>          *
 # *                                                                         *
 # *   This file is part of the FreeCAD CAx development system.              *
 # *                                                                         *
diff --git a/src/Mod/Fem/feminout/writeFenicsXML.py b/src/Mod/Fem/feminout/writeFenicsXML.py
index a5879d3ba3..34cbdead56 100644
--- a/src/Mod/Fem/feminout/writeFenicsXML.py
+++ b/src/Mod/Fem/feminout/writeFenicsXML.py
@@ -1,5 +1,5 @@
 # ***************************************************************************
-# *   Copyright (c) 2017 Johannes Hartung <j.hartung@gmx.net>               *
+# *   Copyright (c) 2017-2023 Johannes Hartung <j.hartung@gmx.net>          *
 # *                                                                         *
 # *   This file is part of the FreeCAD CAx development system.              *
 # *                                                                         *