diff --git a/README.md b/README.md
index 0320fc0..b9bd1e1 100644
--- a/README.md
+++ b/README.md
@@ -985,6 +985,7 @@ Inspired by [awesome-php](https://github.com/ziadoz/awesome-php).
 * [marshmallow](https://github.com/marshmallow-code/marshmallow) - A lightweight library for converting complex objects to and from simple Python datatypes.
 * [pysimdjson](https://github.com/TkTech/pysimdjson) - A Python bindings for [simdjson](https://github.com/lemire/simdjson).
 * [python-rapidjson](https://github.com/python-rapidjson/python-rapidjson) - A Python wrapper around [RapidJSON](https://github.com/Tencent/rapidjson).
+* [ultrajson](https://github.com/esnme/ultrajson) - A fast JSON decoder and encoder written in C with Python bindings.
 
 ## Serverless Frameworks