diff --git a/src/medical_info/app.py b/src/medical_info/app.py
index f674eeb..daee50d 100644
--- a/src/medical_info/app.py
+++ b/src/medical_info/app.py
@@ -9,7 +9,7 @@ def create_app() -> FastAPI:
 
   @app.get('/health')
   async def health() -> str:
-    return 'ok'
+    return '{"status":"OK"}'
 
   
   from medical_info.routers import medical_cards, checkups