diff --git a/en/src/ownership/intro.md b/en/src/ownership/intro.md
index a944dce5..a35c1e61 100644
--- a/en/src/ownership/intro.md
+++ b/en/src/ownership/intro.md
@@ -1,5 +1,5 @@
 # Ownership and Borrowing
 Learning resources: 
-- English: [Rust Book 4.1-4.4](https://doc.rust-lang.org/book/ch04-00-understanding-ownership.html)
+- English: [Rust Book 4.1-4.3](https://doc.rust-lang.org/book/ch04-00-understanding-ownership.html)
 - 简体中文: [Rust语言圣经 - 所有权与借用](https://course.rs/basic/ownership/index.html)