diff --git a/_src/README.md b/_src/README.md
index e5766346..745601a4 100644
--- a/_src/README.md
+++ b/_src/README.md
@@ -73,6 +73,7 @@ Serde by the community.
   and from DynamoDB.
 - [Hjson], a syntax extension to JSON designed around human reading and editing.
   *(deserialization only)*
+- [Redbin], a binary format that accurately represents [Red language] values.
 
 [JSON]: https://github.com/serde-rs/json
 [Bincode]: https://github.com/servo/bincode
@@ -98,6 +99,8 @@ Serde by the community.
 [DynamoDB Items]: https://docs.rs/serde_dynamo
 [rusoto_dynamodb]: https://docs.rs/rusoto_dynamodb
 [Hjson]: https://github.com/Canop/deser-hjson
+[Redbin]: https://github.com/loziniak/redbin
+[Red language]: https://www.red-lang.org/
 
 ### Data structures