diff --git a/README.md b/README.md
index d0870e7f..b47b7a0f 100644
--- a/README.md
+++ b/README.md
@@ -5,10 +5,10 @@
 </p>
 
 <p align="center">
-    <a href="knowstreaming.com">产品官网</a> | 
+    <a href="https://knowstreaming.com">产品官网</a> | 
     <a href="https://github.com/didi/KnowStreaming/releases">下载地址</a> | 
-    <a href="doc.knowstreaming.com">文档资源</a> | 
-    <a href="demo.knowstreaming.com">体验环境</a> 
+    <a href="https://doc.knowstreaming.com">文档资源</a> | 
+    <a href="https://demo.knowstreaming.com">体验环境</a> 
 </p>
 
 <p align="center">