diff --git a/.travis.yml b/.travis.yml
index 960235c0..e9e9df75 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 # Copyright 2016, 2017 Peter Dimov
-# Copyright 2017 Kohei Takahashi
+# Copyright 2017-2018 Kohei Takahashi
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
 
diff --git a/appveyor.yml b/appveyor.yml
index 6f9e9c86..b54741dc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,5 @@
 # Copyright 2016, 2017 Peter Dimov
-# Copyright 2017 Kohei Takahashi
+# Copyright 2017-2018 Kohei Takahashi
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
 
diff --git a/test/Jamfile b/test/Jamfile
index c02bb414..0fbabce1 100644
--- a/test/Jamfile
+++ b/test/Jamfile
@@ -1,7 +1,7 @@
 ##==============================================================================
 #    Copyright (c) 2003-2006 Joel de Guzman
 #    Copyright (c) 2013 Mateusz Loskot
-#    Copyright (c) 2014-2017 Kohei Takahashi
+#    Copyright (c) 2014-2018 Kohei Takahashi
 #
 #   Use, modification and distribution is subject to the Boost Software
 #   License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at