diff --git a/backend/requirements.txt b/backend/requirements.txt
index d8d5ae2..524b9f2 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -33,5 +33,5 @@ prometheus-client>=0.21.0
 # Tests / local verification
 pytest>=8.3.0
 pytest-asyncio>=0.24.0
-ruff>=0.8.0
+ruff>=0.15.12
 mypy>=1.14.0