diff --git a/docs/chapter07.md b/docs/chapter07.md
index 4df2246..e0df1a9 100644
--- a/docs/chapter07.md
+++ b/docs/chapter07.md
@@ -50,7 +50,7 @@
 #### 7.3.3 Controller和service
 
 
-### 7.4 单文章相关功能开发
+### 7.4 文章相关功能开发
 
 #### 7.4.1 API设计