diff --git a/README.md b/README.md
index c109baac..20abdd97 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # xorm
-===========
+----------
 
 [中文](./README_CN.md)
 
diff --git a/README_CN.md b/README_CN.md
index 48138065..9bf3f91c 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -1,5 +1,5 @@
 # xorm
-===========
+----------
 
 [English](README.md)