diff --git a/core/routers/pay/routes.py b/core/routers/pay/routes.py
index 0204de5..e6e9dcf 100644
--- a/core/routers/pay/routes.py
+++ b/core/routers/pay/routes.py
@@ -62,7 +62,7 @@ async def create_order(
     )
     out_trade_no = generate_order_number()
     prepay_id = wechat_pay_api.create_unified_order(
-        **payload.model_dump(exclude_none=True),
+        **payload.model_dump(exclude_none=True, exclude={'product_id'}),
         out_trade_no=out_trade_no,
         spbill_create_ip=client_ip
     )
diff --git a/core/routers/product/schema.py b/core/routers/product/schema.py
index 004a5e4..85858e7 100644
--- a/core/routers/product/schema.py
+++ b/core/routers/product/schema.py
@@ -11,6 +11,7 @@ from core.base.schema import ProductCategory
 
 
 class ProductOut(BaseModel):
+    id: int
     name: str
     category: ProductCategory
     price: int