diff --git a/tests/entrypoints/openai/test_openai_schema.py b/tests/entrypoints/openai/test_openai_schema.py
index 1ccb803a328d..5c585d54c429 100644
--- a/tests/entrypoints/openai/test_openai_schema.py
+++ b/tests/entrypoints/openai/test_openai_schema.py
@@ -44,6 +44,6 @@ schema = schemathesis.from_pytest_fixture("get_schema")
 
 @schema.parametrize()
 @schema.override(headers={"Content-Type": "application/json"})
-async def test_openapi_stateless(case):
+def test_openapi_stateless(case: schemathesis.Case):
     #No need to verify SSL certificate for localhost
-    await case.call_and_validate(verify=False)
+    case.call_and_validate(verify=False)
diff --git a/vllm/entrypoints/openai/api_server.py b/vllm/entrypoints/openai/api_server.py
index e034eacb24ef..3699b2d6018b 100644
--- a/vllm/entrypoints/openai/api_server.py
+++ b/vllm/entrypoints/openai/api_server.py
@@ -390,10 +390,10 @@ def engine_client(request: Request) -> EngineClient:
 
 
 @router.get("/health")
-async def health(raw_request: Request) -> Response:
+async def health(raw_request: Request) -> JSONResponse:
     """Health check."""
     await engine_client(raw_request).check_health()
-    return Response(status_code=200)
+    return JSONResponse(content={}, status_code=200)
 
 
 @router.get("/load")
@@ -415,7 +415,7 @@ async def get_server_load_metrics(request: Request):
 
 
 @router.api_route("/ping", methods=["GET", "POST"])
-async def ping(raw_request: Request) -> Response:
+async def ping(raw_request: Request) -> JSONResponse:
     """Ping check. Endpoint required for SageMaker"""
     return await health(raw_request)