diff --git a/letsencrypt/Demo/SingleNode/README.md b/letsencrypt/Demo/SingleNode/README.md
index 3831108..5157142 100644
--- a/letsencrypt/Demo/SingleNode/README.md
+++ b/letsencrypt/Demo/SingleNode/README.md
@@ -16,7 +16,7 @@
         cp tencent-api.sh letsencrypt-wildcard/etc/manual-hook.sh
         ```
 
-    - 调用腾讯云接口设置 TXT 解析记录
+    - 调用阿里云接口设置 TXT 解析记录
         ```
         cp aliyun-api.sh letsencrypt-wildcard/etc/manual-hook.sh
         ```