diff --git a/watchlist-for-activitypub-apps.md b/watchlist-for-activitypub-apps.md
index 058c1bb..0db049d 100644
--- a/watchlist-for-activitypub-apps.md
+++ b/watchlist-for-activitypub-apps.md
@@ -269,8 +269,6 @@ Projects that are officially abandoned by the maintainers or with no signs of li
 
 * [Acorde](https://github.com/polymerwitch/Acorde) - federated social music platform. Almost a year has passed since the initial commit.
 
-* [ActivityStreams](https://github.com/OpenSocial/activitystreams): Reference Implementation `Apache-2.0, Java`
-
 * [ActivityPub.jl](https://github.com/Matt5sean3/ActivityPub.jl) - AP support in the Julia language by [@Matt5sean3](https://rva.party/@Matt5sean3), no commits since August, 2018. Project is [missing, presumed dead](https://github.com/Matt5sean3/ActivityPub.jl/issues/1).
 
 * [Calendar-social](https://gitea.polonkai.eu/gergely/calendar-social/) - was definitely planning to [implement AP](https://gitea.polonkai.eu/gergely/calendar-social/issues/122). Missing, [presumed discontinued](https://gitea.polonkai.eu/gergely/calendar-social/issues/123)