diff --git a/LICENSE-MIT.txt b/LICENSE-MIT.txt
index 50eff66..3a107ae 100644
--- a/LICENSE-MIT.txt
+++ b/LICENSE-MIT.txt
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2023-2024 曾奥然 (Aoran Zeng), 郭恒 (Heng Guo)
+Copyright (c) 2023-2025 曾奥然 (Aoran Zeng), 郭恒 (Heng Guo)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
diff --git a/doc/chsrc.1 b/doc/chsrc.1
index eb6bc71..7a3e08b 100644
--- a/doc/chsrc.1
+++ b/doc/chsrc.1
@@ -148,7 +148,7 @@ On Gitee:  https://gitee.com/RubyMetric/chsrc/issues
 On GitHub: https://github.com/RubyMetric/chsrc/issues
 
 .SH COPYRIGHT
-Copyright (C) 2024 Aoran Zeng, Heng Guo.
+Copyright (C) 2025 Aoran Zeng, Heng Guo.
 License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
 .br
 This is free software: you are free to change and redistribute it.
diff --git a/doc/chsrc.texi b/doc/chsrc.texi
index 54095a4..12acf14 100644
--- a/doc/chsrc.texi
+++ b/doc/chsrc.texi
@@ -18,7 +18,7 @@
 
 @copying
 @comment 这是软件copyright，不是文档copyright，因此不放在titlepage
-Copyright @copyright{} 2024 Aoran Zeng, Heng Guo
+Copyright @copyright{} 2025 Aoran Zeng, Heng Guo
 @end copying
 
 @titlepage
diff --git a/lib/xy.h b/lib/xy.h
index 136d34a..bb7df84 100644
--- a/lib/xy.h
+++ b/lib/xy.h
@@ -1,5 +1,5 @@
 /** ------------------------------------------------------------
- * Copyright © 2023-2024 Aoran Zeng, Heng Guo
+ * Copyright © 2023-2025 Aoran Zeng, Heng Guo
  * SPDX-License-Identifier: MIT
  * -------------------------------------------------------------
  * Lib Name      : xy.h
diff --git a/src/chsrc-main.c b/src/chsrc-main.c
index 4a5bc3a..50b5849 100644
--- a/src/chsrc-main.c
+++ b/src/chsrc-main.c
@@ -1,5 +1,5 @@
 /** ------------------------------------------------------------
- * Copyright © 2023-2024 Aoran Zeng, Heng Guo
+ * Copyright © 2023-2025 Aoran Zeng, Heng Guo
  * SPDX-License-Identifier: GPL-3.0-or-later
  * -------------------------------------------------------------
  * Project Name    :    chsrc
@@ -396,7 +396,7 @@ void
 cli_print_version ()
 {
   say ("chsrc " Chsrc_Version);
-  say ("Copyright (C) 2024 Aoran Zeng, Heng Guo");
+  say ("Copyright (C) 2025 Aoran Zeng, Heng Guo");
   say ("License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>");
   say ("This is free software: you are free to change and redistribute it.");
   say ("There is NO WARRANTY, to the extent permitted by law.");