diff --git a/README.md b/README.md
index 862c190..1084e42 100644
--- a/README.md
+++ b/README.md
@@ -282,9 +282,11 @@ logformat = "text"
 ## Clients
 
 - acme.sh: [https://github.com/Neilpang/acme.sh](https://github.com/Neilpang/acme.sh)
+- 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)
 - Sewer: [https://github.com/komuw/sewer](https://github.com/komuw/sewer)
+- Traefik: [https://github.com/containous/traefik](https://github.com/containous/traefik)
 
 ### Authentication hooks