diff --git a/pyproject.toml b/pyproject.toml
index 23b547a..0db168a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ classifiers = [
 ]
 dependencies = [
     # Web server — PRD §5.1 ingress is FastAPI
-    "fastapi>=0.136.1",
+    "fastapi>=0.138.2",
     "uvicorn[standard]>=0.47.0",
     # Config — single source via .env (PRD §7)
     "pydantic>=2.13.4",