diff --git a/LICENSE.md b/LICENSE.md
index 196e9d6..e142700 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,7 +1,7 @@
 ### Creative Commons Attribution-ShareAlike 3.0 Unported License
 Link to license summary: https://creativecommons.org/licenses/by-sa/3.0/
 
-Copyright (C) 2014-2024 [Lin Song](https://github.com/hwdsl2)   
+Copyright (C) 2014-2025 [Lin Song](https://github.com/hwdsl2)   
 Based on [the work of Thomas Sarlandie](https://github.com/sarfata/voodooprivacy) (Copyright 2012)
 
 See the [aws/](aws/) and [azure/](azure/) subfolders for their respective authors.
diff --git a/README-zh.md b/README-zh.md
index c8d5fb5..9cd4090 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -359,7 +359,7 @@ https://gitlab.com/hwdsl2/setup-ipsec-vpn/-/raw/master/extras/vpnupgrade.sh
 如果无法下载，打开 [vpnupgrade.sh](extras/vpnupgrade.sh)，然后点击右边的 `Raw` 按钮。按快捷键 `Ctrl/Cmd+A` 全选，`Ctrl/Cmd+C` 复制，然后粘贴到你喜欢的编辑器。
 </details>
 
-当前支持的 Libreswan 最新版本是 `5.1`。查看已安装版本：`ipsec --version`。
+当前支持的 Libreswan 最新版本是 `5.2`。查看已安装版本：`ipsec --version`。
 
 **注：** `xl2tpd` 可以使用系统的软件包管理器进行更新，例如 Ubuntu/Debian 上的 `apt-get`。
 
@@ -429,7 +429,7 @@ https://gitlab.com/hwdsl2/setup-ipsec-vpn/-/raw/master/extras/vpnuninstall.sh
 
 ## 授权协议
 
-版权所有 (C) 2014-2024 [Lin Song](https://github.com/hwdsl2) [![View my profile on LinkedIn](https://static.licdn.com/scds/common/u/img/webpromo/btn_viewmy_160x25.png)](https://www.linkedin.com/in/linsongui)   
+版权所有 (C) 2014-2025 [Lin Song](https://github.com/hwdsl2) [![View my profile on LinkedIn](https://static.licdn.com/scds/common/u/img/webpromo/btn_viewmy_160x25.png)](https://www.linkedin.com/in/linsongui)   
 基于 [Thomas Sarlandie 的工作](https://github.com/sarfata/voodooprivacy) (版权所有 2012)
 
 [![Creative Commons License](https://i.creativecommons.org/l/by-sa/3.0/88x31.png)](http://creativecommons.org/licenses/by-sa/3.0/)   
diff --git a/README.md b/README.md
index 6e3c74d..d050369 100644
--- a/README.md
+++ b/README.md
@@ -359,7 +359,7 @@ https://gitlab.com/hwdsl2/setup-ipsec-vpn/-/raw/master/extras/vpnupgrade.sh
 If you are unable to download, open [vpnupgrade.sh](extras/vpnupgrade.sh), then click the `Raw` button on the right. Press `Ctrl/Cmd+A` to select all, `Ctrl/Cmd+C` to copy, then paste into your favorite editor.
 </details>
 
-The latest supported Libreswan version is `5.1`. Check installed version: `ipsec --version`.
+The latest supported Libreswan version is `5.2`. Check installed version: `ipsec --version`.
 
 **Note:** `xl2tpd` can be updated using your system's package manager, such as `apt-get` on Ubuntu/Debian.
 
@@ -429,7 +429,7 @@ For more information, see [Uninstall the VPN](docs/uninstall.md).
 
 ## License
 
-Copyright (C) 2014-2024 [Lin Song](https://github.com/hwdsl2) [![View my profile on LinkedIn](https://static.licdn.com/scds/common/u/img/webpromo/btn_viewmy_160x25.png)](https://www.linkedin.com/in/linsongui)   
+Copyright (C) 2014-2025 [Lin Song](https://github.com/hwdsl2) [![View my profile on LinkedIn](https://static.licdn.com/scds/common/u/img/webpromo/btn_viewmy_160x25.png)](https://www.linkedin.com/in/linsongui)   
 Based on [the work of Thomas Sarlandie](https://github.com/sarfata/voodooprivacy) (Copyright 2012)
 
 [![Creative Commons License](https://i.creativecommons.org/l/by-sa/3.0/88x31.png)](http://creativecommons.org/licenses/by-sa/3.0/)