diff --git a/README.md b/README.md
index a427bcdd0..77954c44c 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ email: <b> maxkeysupport@163.com </b>
 
 Code Hosting <a href="https://github.com/dromara/MaxKey" target="_blank"><b>GitHub</b></a> | <a href="https://gitee.com/dromara/MaxKey" target="_blank"><b>Gitee</b></a>
 
-What is  <b> Single Sign On </b>, referred to as <b> SSO </b >?
+What is  <b> Single Sign On </b>, referred to as <b> SSO </b >.
 
 Users only need to login to the authentication center once , access all the trusted application systems without logging in again.
 
diff --git a/README_en.md b/README_en.md
index 470bb26c0..c233c3d66 100644
--- a/README_en.md
+++ b/README_en.md
@@ -14,7 +14,7 @@ email: <b> maxkeysupport@163.com </b>
 
 Code Hosting <a href="https://github.com/dromara/MaxKey" target="_blank"><b>GitHub</b></a> | <a href="https://gitee.com/dromara/MaxKey" target="_blank"><b>Gitee</b></a>
 
-What is  <b> Single Sign On </b>, referred to as <b> SSO </b >?
+What is  <b> Single Sign On </b>, referred to as <b> SSO </b >.
 
 Users only need to login to the authentication center once , access all the trusted application systems without logging in again.
 
diff --git a/README_zh.md b/README_zh.md
index 1acbf2cd6..50faa8e49 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -16,7 +16,7 @@ QQ交流群：<b>434469201</b>
 代码托管 <a href="https://gitee.com/dromara/MaxKey" target="_blank"><b>Gitee</b></a> | <a href="https://github.com/dromara/MaxKey" target="_blank"><b>GitHub</b></a>
 
  
-什么是<b>单点登录(Single Sign On）</b>，简称为<b>SSO</b>？
+什么是<b>单点登录(Single Sign On）</b>，简称为<b>SSO</b>。
 
 用户只需要登录认证中心一次就可以访问所有相互信任的应用系统，无需再次登录。