diff --git a/README.md b/README.md
index 779ad271..e71ae3df 100644
--- a/README.md
+++ b/README.md
@@ -204,7 +204,8 @@ Below is a list of known projects that use Ristretto:
 
 - [Badger](https://github.com/dgraph-io/badger) - Embeddable key-value DB in Go
 - [Dgraph](https://github.com/dgraph-io/dgraph) - Horizontally scalable and distributed GraphQL database with a graph backend
-- [Vitess](https://github.com/vitessio/vitess) - database clustering system for horizontal scaling of MySQL
+- [Vitess](https://github.com/vitessio/vitess) - Database clustering system for horizontal scaling of MySQL
+- [SpiceDB](https://github.com/authzed/spicedb) - Horizontally scalable permissions database
 
 ## FAQ