diff --git a/backend/requirements.txt b/backend/requirements.txt
index d8d5ae2..9187dec 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -28,7 +28,7 @@ asyncpg>=0.30.0
 
 # Utilities
 structlog>=24.4.0
-prometheus-client>=0.21.0
+prometheus-client>=0.25.0
 
 # Tests / local verification
 pytest>=8.3.0