diff --git a/doc/conversion.qbk b/doc/conversion.qbk
index 47d325d..3fb92b5 100644
--- a/doc/conversion.qbk
+++ b/doc/conversion.qbk
@@ -1,6 +1,6 @@
 [/
     Copyright 2016 Mikhail Maximov.
-    Copyright Antony Polukhin, 2020-2025.
+    Copyright Antony Polukhin, 2020-2026.
 
     Distributed under the Boost Software License, Version 1.0. (See accompanying
     file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)
@@ -12,7 +12,7 @@
     [id conversion]
     [version 1.7]
     [authors [Stroustrup, Bjarne], [Abrahams, Dave], [Rasin, Boris], [Polukhin, Antony]]
-    [copyright 2001 Beman Dawes, 2014-2025 Antony Polukhin]
+    [copyright 2001 Beman Dawes, 2014-2026 Antony Polukhin]
     [license
         Distributed under the Boost Software License, Version 1.0.
         (See accompanying file LICENSE_1_0.txt or copy at
diff --git a/include/boost/polymorphic_pointer_cast.hpp b/include/boost/polymorphic_pointer_cast.hpp
index 640d1f1..6253294 100644
--- a/include/boost/polymorphic_pointer_cast.hpp
+++ b/include/boost/polymorphic_pointer_cast.hpp
@@ -1,6 +1,6 @@
 //  boost polymorphic_pointer_cast.hpp header file  ----------------------------------------------//
 //  (C) Copyright Boris Rasin, 2014-2021.
-//  (C) Copyright Antony Polukhin, 2014-2025.
+//  (C) Copyright Antony Polukhin, 2014-2026.
 //  Distributed under the Boost
 //  Software License, Version 1.0. (See accompanying file
 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/index.html b/index.html
index 3adcc80..5d8a99d 100644
--- a/index.html
+++ b/index.html
@@ -3,7 +3,7 @@
  Copyright (c) 2016 Mikhail Maximov
  vigorous.activity at gmail dot com
 
- Copyright (c) Antony Polukhin, 2021-2024
+ Copyright (c) Antony Polukhin, 2021-2026
 
  Distributed under the Boost Software License,
  Version 1.0. (See accompanying file LICENSE_1_0.txt
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 7391415..95664d0 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,4 +1,4 @@
-# Copyright  (c) 2016-2025 Antony Polukhin
+# Copyright  (c) 2016-2026 Antony Polukhin
 # Distributed under the Boost Software License, Version 1.0.
 # See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt