diff --git a/unittests/dojo_test_case.py b/unittests/dojo_test_case.py
index 1a4468c6f0..61c1c5a808 100644
--- a/unittests/dojo_test_case.py
+++ b/unittests/dojo_test_case.py
@@ -6,6 +6,7 @@
 from itertools import chain
 
 from django.test import TestCase
+from django.test.testcases import SerializeMixin
 from django.urls import reverse
 from django.utils import timezone
 from django.utils.http import urlencode
@@ -41,6 +42,10 @@ def get_unit_tests_path():
     return os.path.dirname(os.path.realpath(__file__))
 
 
+class SerializeZapSample(SerializeMixin):
+    lockfile = 'tests_zap_sample_xml'
+
+
 class DojoTestUtilsMixin:
 
     def get_test_admin(self, *args, **kwargs):
diff --git a/unittests/test_apiv2_scan_import_options.py b/unittests/test_apiv2_scan_import_options.py
index c3101b64f5..29951eca5a 100644
--- a/unittests/test_apiv2_scan_import_options.py
+++ b/unittests/test_apiv2_scan_import_options.py
@@ -1,13 +1,14 @@
 from django.core.files.uploadedfile import SimpleUploadedFile
-from django.test.testcases import SerializeMixin
 from django.urls import reverse
 from rest_framework.authtoken.models import Token
 from rest_framework.test import APIClient, APITestCase
 
 from dojo.models import Finding, Test, Test_Type
 
+from .dojo_test_case import SerializeZapSample
 
-class ScanImportOptionsTest(SerializeMixin, APITestCase):
+
+class ScanImportOptionsTest(SerializeZapSample, APITestCase):
     """
     Test the options `skip_duplicates` and `close_old_findings` for the scan
     import APIv2 endpoint with ZAP
diff --git a/unittests/test_importers_importer.py b/unittests/test_importers_importer.py
index fe676ca757..f29ed482d9 100644
--- a/unittests/test_importers_importer.py
+++ b/unittests/test_importers_importer.py
@@ -517,7 +517,11 @@ def test_reimport_with_invalid_parameters(self):
             self.assertEqual(import0, ['product_name parameter missing'])
 
 
-class TestImporterUtils(SerializeMixin, DojoAPITestCase):
+class SerializedTestImporterUtils(SerializeMixin):
+    lockfile = __file__
+
+
+class TestImporterUtils(SerializedTestImporterUtils, DojoAPITestCase):
     def setUp(self):
         self.testuser, _ = User.objects.get_or_create(username="admin", is_superuser=True)
         token, _ = Token.objects.get_or_create(user=self.testuser)
diff --git a/unittests/test_rest_framework.py b/unittests/test_rest_framework.py
index 4d32c6ebe5..59c235ea95 100644
--- a/unittests/test_rest_framework.py
+++ b/unittests/test_rest_framework.py
@@ -9,7 +9,6 @@
 from unittest.mock import ANY, MagicMock, call, patch
 
 from django.contrib.auth.models import Permission
-from django.test.testcases import SerializeMixin
 from django.urls import reverse
 from drf_spectacular.drainage import GENERATOR_STATS
 from drf_spectacular.settings import spectacular_settings
@@ -130,7 +129,7 @@
     UserContactInfo,
 )
 
-from .dojo_test_case import DojoAPITestCase
+from .dojo_test_case import DojoAPITestCase, SerializeZapSample
 
 logger = logging.getLogger(__name__)
 
@@ -1764,7 +1763,7 @@ def test_user_should_not_have_access_to_product_3_in_detail(self):
         self.assertEqual(response.status_code, 404)
 
 
-class ImportScanTest(SerializeMixin, BaseClass.BaseClassTest):
+class ImportScanTest(SerializeZapSample, BaseClass.BaseClassTest):
     fixtures = ['dojo_testdata.json']
 
     def __init__(self, *args, **kwargs):
@@ -2018,7 +2017,7 @@ def test_create_authorized_product_name_engagement_name_auto_create_product_type
             reimporter_mock.assert_not_called()
 
 
-class ReimportScanTest(SerializeMixin, DojoAPITestCase):
+class ReimportScanTest(SerializeZapSample, DojoAPITestCase):
     fixtures = ['dojo_testdata.json']
 
     def setUp(self):
@@ -2696,7 +2695,7 @@ def __init__(self, *args, **kwargs):
         BaseClass.RESTEndpointTest.__init__(self, *args, **kwargs)
 
 
-class ImportLanguagesTest(SerializeMixin, BaseClass.BaseClassTest):
+class ImportLanguagesTest(BaseClass.BaseClassTest):
     fixtures = ['dojo_testdata.json']
 
     def __init__(self, *args, **kwargs):