diff --git a/Blogs-and-tutorials.md b/Blogs-and-tutorials.md
index f4e57c5..2582c76 100644
--- a/Blogs-and-tutorials.md
+++ b/Blogs-and-tutorials.md
@@ -7,7 +7,6 @@ Here are some blogs that may help you:
 1. https://www.rails365.net/articles/shi-yong-acme-sh-an-zhuang-let-s-encrypt-ti-gong-mian-fei-ssl-zheng-shu
 1. [Windows Tomcat 配置Let’s Encrypt证书并自动更新](http://www.jianshu.com/p/80d72f34140b)
 1. [acme.sh 自动更新 RSA、ECC 双证书实践](https://deepzz.com/post/acmesh-letsencrypt-cert-auto-renew.html)
-1. https://tommyh.io/post/2
 1. https://hitian.info/notes/2017/02/16/acme-sh-create-letsencrypt-certificates-with-dns-api/
 1. https://nmchgx.com/acme-https/
 1. https://www.gubo.org/acme_sh-lets-encrypt-auto-signing-renewing-script/