diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index b65dabd5e5..10a037bb0d 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -17,6 +17,10 @@ Unreleased
 ----------
 * nothing unreleased
 
+[4.18.2]
+--------
+* fix: update enterprise model lookup in removal email task
+
 [4.18.1]
 --------
 * chore: debugging log lines
diff --git a/enterprise/__init__.py b/enterprise/__init__.py
index 4336018c00..512be590f0 100644
--- a/enterprise/__init__.py
+++ b/enterprise/__init__.py
@@ -2,4 +2,4 @@
 Your project description goes here.
 """
 
-__version__ = "4.18.1"
+__version__ = "4.18.2"
diff --git a/enterprise/tasks.py b/enterprise/tasks.py
index 7a3d11ad02..a7b3760c6c 100644
--- a/enterprise/tasks.py
+++ b/enterprise/tasks.py
@@ -376,7 +376,7 @@ def send_group_membership_removal_notification(enterprise_customer_uuid, members
     ] = enterprise_catalog_client.get_catalog_content_count(catalog_uuid)
     pecu_emails = []
     user_id_by_email = {}
-    membership_records = enterprise_group_membership_model().objects.filter(uuid__in=membership_uuids)
+    membership_records = enterprise_group_membership_model().all_objects.filter(uuid__in=membership_uuids)
     for group_membership in membership_records:
         if group_membership.pending_enterprise_customer_user is not None:
             pecu_emails.append(group_membership.pending_enterprise_customer_user.user_email)
diff --git a/tests/test_enterprise/api/test_views.py b/tests/test_enterprise/api/test_views.py
index c656264d8d..de06a0498c 100644
--- a/tests/test_enterprise/api/test_views.py
+++ b/tests/test_enterprise/api/test_views.py
@@ -8084,12 +8084,17 @@ def test_successful_remove_learners_from_group(self, mock_send_group_membership_
             membership = EnterpriseGroupMembershipFactory(group=self.group_2)
             memberships_to_delete.append(membership)
             existing_emails.append(membership.enterprise_customer_user.user.email)
-
-        request_data = {'learner_emails': existing_emails}
+        catalog_uuid = uuid.uuid4()
+        request_data = {'learner_emails': existing_emails, 'catalog_uuid': catalog_uuid}
         response = self.client.post(url, data=request_data)
         assert response.status_code == 200
         assert response.data == {'records_deleted': 10}
         assert mock_send_group_membership_removal_notification.call_count == 1
+        mock_send_group_membership_removal_notification.assert_called_once_with(
+            self.enterprise_customer.uuid,
+            [membership.uuid for membership in reversed(memberships_to_delete)],
+            catalog_uuid,
+        )
         for membership in memberships_to_delete:
             assert EnterpriseGroupMembership.all_objects.get(pk=membership.pk).status == 'removed'
             assert EnterpriseGroupMembership.all_objects.get(pk=membership.pk).removed_at
diff --git a/tests/test_enterprise/test_tasks.py b/tests/test_enterprise/test_tasks.py
index 9ac2c5da46..905e26299e 100644
--- a/tests/test_enterprise/test_tasks.py
+++ b/tests/test_enterprise/test_tasks.py
@@ -273,17 +273,19 @@ def test_send_group_membership_removal_notification(self, mock_braze_api_client,
         """
         Verify send_group_membership_removal_notification hits braze client with expected args
         """
-        EnterpriseGroupMembershipFactory(
+        pecu_membership = EnterpriseGroupMembershipFactory(
             group=self.enterprise_group,
             pending_enterprise_customer_user=self.pending_enterprise_customer_user,
             enterprise_customer_user=None,
         )
-        EnterpriseGroupMembershipFactory(
+        ecu_membership = EnterpriseGroupMembershipFactory(
             group=self.enterprise_group,
             pending_enterprise_customer_user=None,
             enterprise_customer_user__enterprise_customer=self.enterprise_customer,
             activated_at=datetime.now()
         )
+        pecu_membership.delete()
+        ecu_membership.delete()
         admin_email = 'edx@example.org'
         mock_braze_api_client().create_recipients.return_value = {
             self.user.email: {
@@ -315,7 +317,7 @@ def test_send_group_membership_removal_notification(self, mock_braze_api_client,
         mock_catalog_content_count = 5
         mock_enterprise_catalog_client().get_catalog_content_count.return_value = (
             mock_catalog_content_count)
-        membership_uuids = EnterpriseGroupMembership.objects.values_list('uuid', flat=True)
+        membership_uuids = EnterpriseGroupMembership.all_objects.values_list('uuid', flat=True)
         catalog_uuid = uuid.uuid4()
         send_group_membership_removal_notification(
             self.enterprise_customer.uuid,