diff --git a/app/main.py b/app/main.py
index 4b6983d..a02f77a 100644
--- a/app/main.py
+++ b/app/main.py
@@ -20,7 +20,7 @@ app.include_router(items_router, prefix="/api/v1")
 
 @app.get("/")
 def read_root():
-    return {"message": "欢迎使用FastAPI示例应用"}
+    return {"message": "欢迎使用FastAPI示例应用 v1.1"}
 
 @app.get("/health")
 def health_check():