diff --git a/backend/live-bridge/requirements-dev.txt b/backend/live-bridge/requirements-dev.txt
index a9fda71..31afb12 100644
--- a/backend/live-bridge/requirements-dev.txt
+++ b/backend/live-bridge/requirements-dev.txt
@@ -1,3 +1,3 @@
 # Test-only dependencies (not shipped in the Cloud Run image).
 -r requirements.txt
-pytest>=8.0
+pytest>=9.1.1