diff --git a/README.MD b/README.MD
index 2118980..3998e1e 100644
--- a/README.MD
+++ b/README.MD
@@ -6,7 +6,6 @@
 - [Rust 官方文档](https://doc.rust-lang.org/book/)
 - [Rustlings](https://github.com/rust-lang/rustlings)
 - [Rust by Example](https://doc.rust-lang.org/rust-by-example/)
-- [Rustlings](https://github.com/rust-lang/rustlings)
 - [Rust 程序设计语言](https://kaisery.github.io/trpl-zh-cn/)