diff --git a/services/flask-backend/requirements.txt b/services/flask-backend/requirements.txt
index f2f04a8f..b56ba4a8 100644
--- a/services/flask-backend/requirements.txt
+++ b/services/flask-backend/requirements.txt
@@ -42,7 +42,7 @@ prometheus-client==0.21.1
 httpx==0.28.1
 
 # Development
-pytest==8.3.4
+pytest==9.0.3
 pytest-cov==6.0.0
 pytest-asyncio==0.25.0
 black==24.10.0