diff --git a/services.md b/services.md
index 24c65e0cc6189b47c4953085964f7692f44f04c4..3ac2ab76b2241c6a35eb4d3b0f6237deb7e4abca 100644
--- a/services.md
+++ b/services.md
@@ -29,6 +29,7 @@ Misc:
 * [Riot. Break through.](https://riot.im/).
 * [Signal Server](https://github.com/whispersystems/signal-server).
 * [Wire Server](https://github.com/wireapp/wire-server).
+* [Katzenpost](https://katzenpost.mixnetworks.org/).
 
 Jabber: