diff --git a/README.md b/README.md
index 392987d8..6386f014 100644
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 [![testing](https://github.com/materialsproject/api/workflows/testing/badge.svg)](https://github.com/materialsproject/api/actions?query=workflow%3Atesting)
 [![codecov](https://codecov.io/gh/materialsproject/api/branch/main/graph/badge.svg)](https://codecov.io/gh/materialsproject/api)
+![python](https://img.shields.io/badge/Python-3.9+-blue.svg?logo=python&logoColor=white)
 
 This repository is the development environment for the new Materials Project API. A core client implementation will reside here. For information on how to use the API, please see the updated [documentation](https://docs.materialsproject.org/downloading-data/how-do-i-download-the-materials-project-database).