diff --git a/app/celery/scheduled_tasks.py b/app/celery/scheduled_tasks.py
index 3597bdbb7..2d1250c37 100644
--- a/app/celery/scheduled_tasks.py
+++ b/app/celery/scheduled_tasks.py
@@ -1,10 +1,10 @@
 from datetime import timedelta
 
 from flask import current_app
-from sqlalchemy import between
+from sqlalchemy import between, select, union
 from sqlalchemy.exc import SQLAlchemyError
 
-from app import notify_celery, zendesk_client
+from app import db, notify_celery, zendesk_client
 from app.celery.tasks import (
     get_recipient_csv_and_template_and_sender_id,
     process_incomplete_jobs,
@@ -105,19 +105,23 @@ def check_job_status():
     thirty_minutes_ago = utc_now() - timedelta(minutes=30)
     thirty_five_minutes_ago = utc_now() - timedelta(minutes=35)
 
-    incomplete_in_progress_jobs = Job.query.filter(
+    incomplete_in_progress_jobs = select(Job).filter(
         Job.job_status == JobStatus.IN_PROGRESS,
         between(Job.processing_started, thirty_five_minutes_ago, thirty_minutes_ago),
     )
-    incomplete_pending_jobs = Job.query.filter(
+    incomplete_pending_jobs = select(Job).filter(
         Job.job_status == JobStatus.PENDING,
         Job.scheduled_for.isnot(None),
         between(Job.scheduled_for, thirty_five_minutes_ago, thirty_minutes_ago),
     )
 
     jobs_not_complete_after_30_minutes = (
-        incomplete_in_progress_jobs.union(incomplete_pending_jobs)
-        .order_by(Job.processing_started, Job.scheduled_for)
+        db.session.execute(
+            union(incomplete_in_progress_jobs, incomplete_pending_jobs).order_by(
+                Job.processing_started, Job.scheduled_for
+            )
+        )
+        .scalars()
         .all()
     )