diff --git a/README.md b/README.md
index 71ea17ff84a2f15b769441ae19a6bd97a3e411f0..f202169aab9823af3895f24a829c416a32720afa 100644
--- a/README.md
+++ b/README.md
@@ -283,6 +283,7 @@ logformat = "text"
 ## Clients
 
 - acme.sh: [https://github.com/Neilpang/acme.sh](https://github.com/Neilpang/acme.sh)
+- Certify The Web: [https://github.com/webprofusion/certify](https://github.com/webprofusion/certify)
 - cert-manager: [https://github.com/jetstack/cert-manager](https://github.com/jetstack/cert-manager)
 - Lego: [https://github.com/xenolf/lego](https://github.com/xenolf/lego)
 - Posh-ACME: [https://github.com/rmbolger/Posh-ACME](https://github.com/rmbolger/Posh-ACME)