diff --git a/app/model/FileModel.py b/app/model/FileModel.py
index 780ecc8..9d805f8 100644
--- a/app/model/FileModel.py
+++ b/app/model/FileModel.py
@@ -1,5 +1,6 @@
 import datetime
 from pathlib import Path
+from typing import Optional
 
 from fastapi import UploadFile
 from sqlmodel import Field
@@ -15,12 +16,12 @@ from app.utils.path_join import path_join
 class FileModel(BasicModel, table=True):
   __tablename__ = "pl_upload"
 
-  name: str = Field(default=None, description='文件名称')
-  path: str = Field(default=None, description='文件路径')
-  head_id: str = Field(default=None, description='父对象id')
-  attr1: str = Field(default=None, description='扩展属性1')
-  attr2: str = Field(default=None, description='扩展属性2')
-  attr3: str = Field(default=None, description='扩展属性3')
+  name: Optional[str] = Field(default=None, description='文件名称')
+  path: Optional[str] = Field(default=None, description='文件路径')
+  head_id: Optional[str] = Field(default=None, description='父对象id')
+  attr1: Optional[str] = Field(default=None, description='扩展属性1')
+  attr2: Optional[str] = Field(default=None, description='扩展属性2')
+  attr3: Optional[str] = Field(default=None, description='扩展属性3')
 
 
 FileService = create_model_service(Cls=FileModel)