diff --git a/letsencrypt/README.md b/letsencrypt/README.md
index 3c2c558..d670297 100644
--- a/letsencrypt/README.md
+++ b/letsencrypt/README.md
@@ -13,5 +13,5 @@
 - DOMAINS: 待申请 ssl 证书的域名，多个域名用逗号间隔
 
 ## 案例 1
-- [Demo/SingleNode/](/Demo/SingleNode/): 部署 letsencrypt
+- [Demo/SingleNode/](Demo/SingleNode/): 部署 letsencrypt