diff --git a/README.md b/README.md
index 5dbcb49..9134b91 100644
--- a/README.md
+++ b/README.md
@@ -92,6 +92,8 @@ A curated list of resources for ActivityPub developers who create software for t
 
 * [**atoot**](https://github.com/popura-network/atoot): Library providing an easy way to create Mastodon API applications `MIT, Python`
 
+* [**BigBone**](https://github.com/andregasser/bigbone): A fork of Mastodon4J, a Mastodon client library for Java and Kotlin. `MIT, Kotlin`
+
 * [**Clovis**](https://github.com/WellFactored/clovis): [ARCHIVED] Implementation of ActivityPub in Scala. (Hobby project included here for reference only.) `AGPL-3.0, Scala`
 
 * [**Bovine**](https://codeberg.org/helge/bovine/bovine/) ([PyPI](https://pypi.org/project/bovine/), [ReadTheDocs](https://bovine.readthedocs.io/en/latest/index.html), [Fedi account](https://blog.mymath.rocks/)): Basic Python FediVerse utility library. `MIT, Python`