diff --git a/core/filters.py b/core/filters.py
index 4188d2b2..992d8970 100644
--- a/core/filters.py
+++ b/core/filters.py
@@ -3,7 +3,7 @@ import logging
 import uuid
 
 from django.core.exceptions import BadRequest
-from django.db.models import Avg, FloatField, OuterRef, Q, Subquery, Value
+from django.db.models import Avg, Exists, FloatField, OuterRef, Q, Subquery, Value
 from django.db.models.functions import Coalesce
 from django.utils.http import urlsafe_base64_decode
 from django.utils.translation import gettext_lazy as _