diff --git a/cli/filelister.h b/cli/filelister.h
index 72689c6216d..dc1f34b3b3d 100644
--- a/cli/filelister.h
+++ b/cli/filelister.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2021 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/gui/application.h b/gui/application.h
index a5bbc31a323..e6d92ee853b 100644
--- a/gui/application.h
+++ b/gui/application.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/gui/csvreport.h b/gui/csvreport.h
index cfd918fe082..b1bed2841cc 100644
--- a/gui/csvreport.h
+++ b/gui/csvreport.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/calculate.h b/lib/calculate.h
index 96520cc629f..5d4319daca8 100644
--- a/lib/calculate.h
+++ b/lib/calculate.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/check64bit.cpp b/lib/check64bit.cpp
index c43eb9db23e..dc9ba26ec99 100644
--- a/lib/check64bit.cpp
+++ b/lib/check64bit.cpp
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/check64bit.h b/lib/check64bit.h
index e79acbd8567..122fd8cb098 100644
--- a/lib/check64bit.h
+++ b/lib/check64bit.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/checkassert.h b/lib/checkassert.h
index e2455a921ce..7697f650dbd 100644
--- a/lib/checkassert.h
+++ b/lib/checkassert.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/checkboost.cpp b/lib/checkboost.cpp
index 5ddea99456d..4913a691fba 100644
--- a/lib/checkboost.cpp
+++ b/lib/checkboost.cpp
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/checkboost.h b/lib/checkboost.h
index 1ea25b28501..376b137d5a9 100644
--- a/lib/checkboost.h
+++ b/lib/checkboost.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/checkpostfixoperator.cpp b/lib/checkpostfixoperator.cpp
index d8e60a3d49a..91250e8b707 100644
--- a/lib/checkpostfixoperator.cpp
+++ b/lib/checkpostfixoperator.cpp
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/checkpostfixoperator.h b/lib/checkpostfixoperator.h
index 500a38293f1..99460cb3141 100644
--- a/lib/checkpostfixoperator.h
+++ b/lib/checkpostfixoperator.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/checkstring.cpp b/lib/checkstring.cpp
index 11164bd65bb..6b230b1d979 100644
--- a/lib/checkstring.cpp
+++ b/lib/checkstring.cpp
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/checkvaarg.h b/lib/checkvaarg.h
index cd509e0d0d7..e2f0ad92805 100644
--- a/lib/checkvaarg.h
+++ b/lib/checkvaarg.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/matchcompiler.h b/lib/matchcompiler.h
index e530276c1f5..323f455050b 100644
--- a/lib/matchcompiler.h
+++ b/lib/matchcompiler.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2021 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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/lib/standards.h b/lib/standards.h
index ee56d88816c..f22cd76329a 100644
--- a/lib/standards.h
+++ b/lib/standards.h
@@ -1,6 +1,6 @@
 /*
  * Cppcheck - A tool for static C/C++ code analysis
- * Copyright (C) 2007-2022 Cppcheck team.
+ * Copyright (C) 2007-2023 Cppcheck team.
  *
  * 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