diff --git a/ecs/jskult-webapp/src/controller/master_mainte.py b/ecs/jskult-webapp/src/controller/master_mainte.py
index c97d40eb..bc0c621f 100644
--- a/ecs/jskult-webapp/src/controller/master_mainte.py
+++ b/ecs/jskult-webapp/src/controller/master_mainte.py
@@ -1,10 +1,13 @@
+from io import BytesIO, TextIOWrapper
 from typing import Optional
+
 from fastapi import APIRouter, Depends, HTTPException, Request
 from fastapi.responses import HTMLResponse
 from starlette import status
 
 from src.depends.services import get_service
 from src.model.internal.session import UserSession
+from src.model.request.master_mainte_csvup import MasterMainteCsvUpModel
 from src.model.view.inst_emp_csv_download_view_model import \
     InstEmpCsvDownloadViewModel
 from src.model.view.inst_emp_csv_upload_view_model import \
@@ -18,9 +21,6 @@ from src.services.master_mainte_service import MasterMainteService
 from src.services.session_service import set_session
 from src.system_var import constants
 from src.templates import templates
-from src.model.request.master_mainte_csvup import MasterMainteCsvUpModel
-from fastapi import APIRouter, File, Form, Request
-from io import TextIOWrapper, BytesIO
 
 router = APIRouter()
 router.route_class = AuthenticatedRoute