diff --git a/cli/filelister.h b/cli/filelister.h
index 72689c621..dc1f34b3b 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 a5bbc31a3..e6d92ee85 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 cfd918fe0..b1bed2841 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 96520cc62..5d4319dac 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 c43eb9db2..dc9ba26ec 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 e79acbd85..122fd8cb0 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 e2455a921..7697f650d 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 5ddea9945..4913a691f 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 1ea25b285..376b137d5 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 d8e60a3d4..91250e8b7 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 500a38293..99460cb31 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 11164bd65..6b230b1d9 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 cd509e0d0..e2f0ad928 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 e530276c1..323f45505 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 ee56d8881..f22cd7632 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