diff --git a/atst/models/attachment.py b/atst/models/attachment.py
index caf034dd..61a7c946 100644
--- a/atst/models/attachment.py
+++ b/atst/models/attachment.py
@@ -1,4 +1,4 @@
-from sqlalchemy import Column, Integer, String
+from sqlalchemy import Column, String
 from flask import current_app as app
 
 from atst.models import Base, types, mixins