diff --git a/backend/app/main.py b/backend/app/main.py
index d59d7c7..5fcda03 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -7,6 +7,7 @@ from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
 from sqlalchemy.orm import Session, joinedload
 from sqlalchemy import func, case
 from typing import List, Optional
+from io import BytesIO
 import os
 import boto3
 from botocore.client import Config