diff --git a/LICENSE.md b/LICENSE.md
index 1f5fdba..6b30fb1 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (C) 2020-2021, by Matvey Cherevko (blackmatov@gmail.com)
+Copyright (C) 2020-2023, by Matvey Cherevko (blackmatov@gmail.com)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/headers/defer.hpp/defer.hpp b/headers/defer.hpp/defer.hpp
index 4b612b5..656bdde 100644
--- a/headers/defer.hpp/defer.hpp
+++ b/headers/defer.hpp/defer.hpp
@@ -1,7 +1,7 @@
 /*******************************************************************************
  * This file is part of the "https://github.com/blackmatov/defer.hpp"
  * For conditions of distribution and use, see copyright notice in LICENSE.md
- * Copyright (C) 2020-2021, by Matvey Cherevko (blackmatov@gmail.com)
+ * Copyright (C) 2020-2023, by Matvey Cherevko (blackmatov@gmail.com)
  ******************************************************************************/
 
 #pragma once
diff --git a/untests/defer_examples.cpp b/untests/defer_examples.cpp
index a7c2237..6cb8296 100644
--- a/untests/defer_examples.cpp
+++ b/untests/defer_examples.cpp
@@ -1,7 +1,7 @@
 /*******************************************************************************
  * This file is part of the "https://github.com/blackmatov/defer.hpp"
  * For conditions of distribution and use, see copyright notice in LICENSE.md
- * Copyright (C) 2020-2021, by Matvey Cherevko (blackmatov@gmail.com)
+ * Copyright (C) 2020-2023, by Matvey Cherevko (blackmatov@gmail.com)
  ******************************************************************************/
 
 #include <defer.hpp/defer.hpp>
diff --git a/untests/defer_tests.cpp b/untests/defer_tests.cpp
index daa83fb..18a2613 100644
--- a/untests/defer_tests.cpp
+++ b/untests/defer_tests.cpp
@@ -1,7 +1,7 @@
 /*******************************************************************************
  * This file is part of the "https://github.com/blackmatov/defer.hpp"
  * For conditions of distribution and use, see copyright notice in LICENSE.md
- * Copyright (C) 2020-2021, by Matvey Cherevko (blackmatov@gmail.com)
+ * Copyright (C) 2020-2023, by Matvey Cherevko (blackmatov@gmail.com)
  ******************************************************************************/
 
 #include <defer.hpp/defer.hpp>