diff --git a/README.md b/README.md
index 170a6a36..767eb6bf 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,7 @@ A not-so-up-to-date-list-that-may-be-actually-current:
 * https://router7.org/
 * https://github.com/fortio/dnsping
 * https://github.com/Luzilla/dnsbl_exporter
+* https://github.com/bodgit/tsig
 
 Send pull request if you want to be listed here.