diff --git a/README.md b/README.md
index 5314750..44d2c93 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-<h3 align="left"><strong>中文</strong> | <a href="https://github.com/tw93/Pake/blob/master/README_EN.md">English</a></h3>
+<h4 align="left"><strong>中文</strong> | <a href="https://github.com/tw93/Pake/blob/master/README_EN.md">English</a></h4>
 <p align="center">
     <img src=https://gw.alipayobjects.com/zos/k/fa/logo-modified.png width=138/>
 </p>
diff --git a/README_EN.md b/README_EN.md
index 0c2771a..15c8572 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -1,4 +1,4 @@
-<h3 align="left"><a href="https://github.com/tw93/Pake">中文</a> | <strong>English</strong></h3>
+<h4 align="left"><a href="https://github.com/tw93/Pake">中文</a> | <strong>English</strong></h4>
 <p align="center">
     <img src=https://gw.alipayobjects.com/zos/k/fa/logo-modified.png width=138/>
 </p>