diff --git a/src/documents/tests/test_permission_filtering_security.py b/src/documents/tests/test_permission_filtering_security.py
index aeb8be168..a27a7e2b9 100644
--- a/src/documents/tests/test_permission_filtering_security.py
+++ b/src/documents/tests/test_permission_filtering_security.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from http import HTTPStatus
+from typing import TYPE_CHECKING
 from unittest.mock import patch
 
 import pytest
@@ -25,6 +26,10 @@ from documents.tests.factories import DocumentTypeFactory
 from documents.tests.factories import StoragePathFactory
 from documents.tests.factories import TagFactory
 
+if TYPE_CHECKING:
+    from django.db.models import Model
+    from factory.django import DjangoModelFactory
+
 
 def assert_visible_document_ids(actual_ids, *, expected_visible, expected_hidden):
     actual_ids = set(actual_ids)
@@ -453,7 +458,12 @@ class TestTrashRestorePermissionBoundary:
     ],
 )
 class TestPermittedObjectIdsGenericModels:
-    def test_owner_sees_own_object(self, model, factory, perm):
+    def test_owner_sees_own_object(
+        self,
+        model: type[Model],
+        factory: type[DjangoModelFactory],
+        perm: str,
+    ) -> None:
         owner = User.objects.create_user(username=f"owner_{model.__name__}")
         stranger = User.objects.create_user(username=f"stranger_{model.__name__}")
         owned = factory(owner=owner)
@@ -465,7 +475,12 @@ class TestPermittedObjectIdsGenericModels:
             expected_hidden=[strangers.pk],
         )
 
-    def test_unowned_object_visible_to_everyone(self, model, factory, perm):
+    def test_unowned_object_visible_to_everyone(
+        self,
+        model: type[Model],
+        factory: type[DjangoModelFactory],
+        perm: str,
+    ) -> None:
         user = User.objects.create_user(username=f"user_{model.__name__}")
         unowned = factory(owner=None)
 
@@ -475,7 +490,12 @@ class TestPermittedObjectIdsGenericModels:
             expected_hidden=[],
         )
 
-    def test_explicit_permission_grants_visibility(self, model, factory, perm):
+    def test_explicit_permission_grants_visibility(
+        self,
+        model: type[Model],
+        factory: type[DjangoModelFactory],
+        perm: str,
+    ) -> None:
         owner = User.objects.create_user(username=f"owner2_{model.__name__}")
         grantee = User.objects.create_user(username=f"grantee_{model.__name__}")
         stranger = User.objects.create_user(username=f"stranger2_{model.__name__}")
@@ -496,10 +516,10 @@ class TestPermittedObjectIdsGenericModels:
 
     def test_group_permission_grants_visibility_to_members_only(
         self,
-        model,
-        factory,
-        perm,
-    ):
+        model: type[Model],
+        factory: type[DjangoModelFactory],
+        perm: str,
+    ) -> None:
         owner = User.objects.create_user(username=f"owner3_{model.__name__}")
         member = User.objects.create_user(username=f"member_{model.__name__}")
         non_member = User.objects.create_user(username=f"nonmember_{model.__name__}")
@@ -519,7 +539,12 @@ class TestPermittedObjectIdsGenericModels:
             expected_hidden=[shared.pk],
         )
 
-    def test_superuser_sees_everything(self, model, factory, perm):
+    def test_superuser_sees_everything(
+        self,
+        model: type[Model],
+        factory: type[DjangoModelFactory],
+        perm: str,
+    ) -> None:
         superuser = User.objects.create_superuser(username=f"root_{model.__name__}")
         owner = User.objects.create_user(username=f"owner4_{model.__name__}")
         obj = factory(owner=owner)