diff --git a/watchlist-for-activitypub-apps.md b/watchlist-for-activitypub-apps.md
index 72a0526..ab5573f 100644
--- a/watchlist-for-activitypub-apps.md
+++ b/watchlist-for-activitypub-apps.md
@@ -32,6 +32,8 @@ The [SocialWG has a list](https://www.w3.org/wiki/Socialwg/ActivityPub_network)
 
 * ✔ [Pleroma](https://pleroma.social/)
 
+* ✔ [postActiv](http://gitea.postactiv.com/postActiv/postActiv/issues/3)
+
 * [pump.io](https://github.com/pump-io/pump.io/issues/1241)
 
 * [Pylodon](https://github.com/rowanlupton/pylodon) - Flask-based (Python) ActivityPub server ([Smilodon client](https://github.com/rowanlupton/smilodon), [article](https://blog.rowan.website/2017/12/23/pylodon))