diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..298fc13
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Baoshuo Ren
+
+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:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index 33237e5..8d7a7d0 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,10 @@
 # 适用于 UniversalOJ 的洛谷 Remote Judge 模块
 
-> 为 UniversalOJ 编写的洛谷 Remote Judge 模块，修改自 [S2OJ](https://github.com/renbaoshuo/S2OJ)。
+> 为 UniversalOJ 编写的洛谷 Remote Judge 模块，修改自 [S2OJ](https://github.com/renbaoshuo/S2OJ) 的 Remote Judge 模块。
 
-本模块依托于 [洛谷开放平台](https://docs.lgapi.cn) 的强大能力，为由 [UniversalOJ 社区版](https://github.com/UniversalOJ/UOJ-System) 驱动的在线评测系统提供 Remote Judge 支持。
+## 介绍
+
+本模块依托于 [洛谷开放平台](https://docs.lgapi.cn/open/) 的强大能力，为由 [UniversalOJ 社区版](https://github.com/UniversalOJ/UOJ-System) 驱动的在线评测系统提供 Remote Judge 支持。
 
 如果您现有的评测系统是基于 [UniversalOJ 官网版](https://github.com/vfleaking/uoj) 搭建的，也可参考本仓库进行集成。
 
@@ -22,7 +24,7 @@
 
 ## Author
 
-**UOJ-Luogu-RemoteJudge** © [Baoshuo](https://github.com/renbaoshuo), Released under the [_(to be filled)_](./LICENSE) License.<br>
+**UOJ-Luogu-RemoteJudge** © [Baoshuo](https://github.com/renbaoshuo), Released under the [MIT](./LICENSE) License.<br>
 Authored and maintained by Baoshuo with help from [contributors](https://github.com/renbaoshuo/UOJ-Luogu-RemoteJudge/contributors).
 
 > [Personal Website](https://baoshuo.ren) · [Blog](https://blog.baoshuo.ren) · GitHub [@renbaoshuo](https://github.com/renbaoshuo) · Twitter [@renbaoshuo](https://twitter.com/renbaoshuo)