diff --git a/README.md b/README.md
index 0915fb3dfe17f1fb33abe1e505a469ac822c8552..2721513724db0c19bf81a0fe721b4a5f7fbb6528 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@ Backend for Historical Manuscripts Indexing
 ===========================================
 
 [![pipeline status](https://gitlab.teklia.com/arkindex/backend/badges/master/pipeline.svg)](https://gitlab.teklia.com/arkindex/backend/commits/master)
+[![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 
 ## Requirements