diff --git a/main.py b/main.py
index e3c56df..ca03236 100644
--- a/main.py
+++ b/main.py
@@ -1,6 +1,5 @@
 import asyncio
 import datetime
-import time
 import uuid
 from pathlib import Path
 from sqlalchemy import select, func, update
@@ -13,7 +12,6 @@ from core.depends import admin_required
 from fastapi import FastAPI, Depends, UploadFile, Form, File, HTTPException, BackgroundTasks
 from core.database import init_models, Options, Codes, get_session
 from settings import settings
-import hashlib
 
 # 实例化FastAPI
 app = FastAPI(debug=settings.DEBUG, redoc_url=None, docs_url=None, openapi_url=None)