diff --git a/README.md b/README.md
index 31792cc..fb9b9fa 100644
--- a/README.md
+++ b/README.md
@@ -358,6 +358,7 @@ See also [Active Directory](#active-directory) and [ADFS](#adfs) below.
 - [CryptoLyzer](https://github.com/c0r0n3r/cryptolyzer) - Fast, flexible and comprehensive server cryptographic protocol (TLS, SSL, SSH, DNSSEC) and related setting (HTTP headers, DNS records) analyzer and fingerprint (JA3, HASSH tag) generator with Python API and CLI.
 - [SSLyze](https://github.com/nabla-c0d3/sslyze) - Fast and powerful SSL/TLS scanning library.
 - [testssl.sh](https://github.com/drwetter/testssl.sh) - Testing TLS/SSL encryption anywhere on any port
+- [SSL Certificate Monitor](https://github.com/brancogao/ssl-certificate-monitor) - Open-source SSL/TLS certificate expiry monitoring tool with email alerts
 
 ### SSH