diff --git a/README.md b/README.md
index a78015c..fe27cf7 100644
--- a/README.md
+++ b/README.md
@@ -311,6 +311,7 @@ logformat = "text"
 - 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)
+- Windows ACME Simple (WACS): [https://github.com/PKISharp/win-acme](https://github.com/PKISharp/win-acme)
 
 ### Authentication hooks