diff --git a/backend/requirements.txt b/backend/requirements.txt
index 707db34..557ac5d 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,6 +1,6 @@
 # Runtime dependencies. Stack fixed by ARCHITECTURE.md §2.
 fastapi>=0.141.1,<1.0
-uvicorn[standard]>=0.52.3,<1.0
+uvicorn[standard]>=0.52.4,<1.0
 pydantic-settings>=2.15.0,<3.0
 pydantic[email]>=2.13.4,<3.0