diff --git a/backend/app/models/session.py b/backend/app/models/session.py
index c797bde..fa8bd07 100644
--- a/backend/app/models/session.py
+++ b/backend/app/models/session.py
@@ -1,4 +1,4 @@
-from sqlalchemy import Column, String, DateTime, ForeignKey, Boolean
+from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, Boolean
 from sqlalchemy.orm import relationship
 from sqlalchemy.sql import func
 from app.database import Base