diff --git a/edx_proctoring/backends/tests/test_backend.py b/edx_proctoring/backends/tests/test_backend.py
index 4623f9e715..e51b0d88a9 100644
--- a/edx_proctoring/backends/tests/test_backend.py
+++ b/edx_proctoring/backends/tests/test_backend.py
@@ -4,7 +4,7 @@
 
 import time
 
-from unittest.mock import patch
+from mock import patch
 
 from django.core.exceptions import ImproperlyConfigured
 from django.test import TestCase
diff --git a/edx_proctoring/backends/tests/test_rest.py b/edx_proctoring/backends/tests/test_rest.py
index 22d3b3bd84..d46fad2c2d 100644
--- a/edx_proctoring/backends/tests/test_rest.py
+++ b/edx_proctoring/backends/tests/test_rest.py
@@ -7,7 +7,7 @@
 import ddt
 import jwt
 import responses
-from unittest.mock import patch
+from mock import patch
 
 from django.test import TestCase, override_settings
 from django.utils import translation
diff --git a/edx_proctoring/backends/tests/test_software_secure.py b/edx_proctoring/backends/tests/test_software_secure.py
index 3d72a49747..c0b6628d36 100644
--- a/edx_proctoring/backends/tests/test_software_secure.py
+++ b/edx_proctoring/backends/tests/test_software_secure.py
@@ -8,7 +8,7 @@
 
 import ddt
 from httmock import HTTMock, all_requests
-from unittest.mock import MagicMock, patch
+from mock import MagicMock, patch
 
 from django.contrib.auth import get_user_model
 from django.test import TestCase
diff --git a/edx_proctoring/management/commands/tests/test_set_attempt_status.py b/edx_proctoring/management/commands/tests/test_set_attempt_status.py
index ab51967e3b..8ae94e969f 100644
--- a/edx_proctoring/management/commands/tests/test_set_attempt_status.py
+++ b/edx_proctoring/management/commands/tests/test_set_attempt_status.py
@@ -5,7 +5,7 @@
 from datetime import datetime
 
 import pytz
-from unittest.mock import MagicMock, patch
+from mock import MagicMock, patch
 
 from django.core.management import call_command
 
diff --git a/edx_proctoring/management/commands/tests/test_update_attempts_for_exam.py b/edx_proctoring/management/commands/tests/test_update_attempts_for_exam.py
index cd47fb5c16..b578de9745 100644
--- a/edx_proctoring/management/commands/tests/test_update_attempts_for_exam.py
+++ b/edx_proctoring/management/commands/tests/test_update_attempts_for_exam.py
@@ -2,7 +2,7 @@
 Tests for the update_attempts_for_exam management command
 """
 
-from unittest.mock import patch
+from mock import patch
 
 from django.contrib.auth import get_user_model
 from django.core.management import call_command
diff --git a/edx_proctoring/tests/test_api.py b/edx_proctoring/tests/test_api.py
index f1f92b12c4..0850562942 100644
--- a/edx_proctoring/tests/test_api.py
+++ b/edx_proctoring/tests/test_api.py
@@ -10,7 +10,7 @@
 import ddt
 import pytz
 from freezegun import freeze_time
-from unittest.mock import MagicMock, patch
+from mock import MagicMock, patch
 
 from django.conf import settings
 from django.core import mail
diff --git a/edx_proctoring/tests/test_email.py b/edx_proctoring/tests/test_email.py
index ffa8c9ecc2..4df3595c5e 100644
--- a/edx_proctoring/tests/test_email.py
+++ b/edx_proctoring/tests/test_email.py
@@ -7,7 +7,7 @@
 from itertools import product
 
 import ddt
-from unittest.mock import MagicMock, patch
+from mock import MagicMock, patch
 from opaque_keys import InvalidKeyError
 
 from django.conf import settings
diff --git a/edx_proctoring/tests/test_mfe_views.py b/edx_proctoring/tests/test_mfe_views.py
index eedbb3c95e..c467caab61 100644
--- a/edx_proctoring/tests/test_mfe_views.py
+++ b/edx_proctoring/tests/test_mfe_views.py
@@ -6,7 +6,7 @@
 from urllib.parse import urlencode
 
 import ddt
-from unittest.mock import patch
+from mock import patch
 from opaque_keys.edx.locator import BlockUsageLocator
 
 from django.conf import settings
diff --git a/edx_proctoring/tests/test_models.py b/edx_proctoring/tests/test_models.py
index 30c4ba805e..f717bd3afa 100644
--- a/edx_proctoring/tests/test_models.py
+++ b/edx_proctoring/tests/test_models.py
@@ -192,7 +192,7 @@ def test_get_practice_proctored_exams_for_course(self):
             is_practice_exam=True
         )
 
-        self.assertQuerySetEqual(
+        self.assertQuerysetEqual(
             ProctoredExam.get_practice_proctored_exams_for_course(course_id), list(practice_proctored_exams)
         )
 
diff --git a/edx_proctoring/tests/test_reviews.py b/edx_proctoring/tests/test_reviews.py
index fbf0163947..68ffd5fcd7 100644
--- a/edx_proctoring/tests/test_reviews.py
+++ b/edx_proctoring/tests/test_reviews.py
@@ -6,8 +6,9 @@
 import json
 
 import ddt
+import mock
 from crum import set_current_request
-from unittest.mock import call, patch
+from mock import call, patch
 
 from django.contrib.auth import get_user_model
 from django.test import RequestFactory
@@ -587,7 +588,7 @@ def test_review_update_attempt_active_field(self):
         self.assertTrue(review.is_attempt_active)
 
         # now delete the attempt, which puts it into the archive table
-        with patch('edx_proctoring.api.update_attempt_status') as mock_update_status:
+        with mock.patch('edx_proctoring.api.update_attempt_status') as mock_update_status:
             remove_exam_attempt(self.attempt_id, requesting_user=self.user)
 
         # check that the field has been updated
diff --git a/edx_proctoring/tests/test_student_view.py b/edx_proctoring/tests/test_student_view.py
index a875ce3c9d..b64b824951 100644
--- a/edx_proctoring/tests/test_student_view.py
+++ b/edx_proctoring/tests/test_student_view.py
@@ -12,7 +12,7 @@
 import ddt
 import pytz
 from freezegun import freeze_time
-from unittest.mock import MagicMock, patch
+from mock import MagicMock, patch
 
 from django.test.utils import override_settings
 from django.urls import reverse
diff --git a/edx_proctoring/tests/test_views.py b/edx_proctoring/tests/test_views.py
index 075cb84fec..aef30172f1 100644
--- a/edx_proctoring/tests/test_views.py
+++ b/edx_proctoring/tests/test_views.py
@@ -10,7 +10,7 @@
 import pytz
 from freezegun import freeze_time
 from httmock import HTTMock
-from unittest.mock import Mock, patch
+from mock import Mock, patch
 from opaque_keys.edx.locator import BlockUsageLocator
 
 from django.contrib.auth import get_user_model
diff --git a/edx_proctoring/tests/test_workerconfig.py b/edx_proctoring/tests/test_workerconfig.py
index f2ab2d7e3f..8bd462b4fc 100644
--- a/edx_proctoring/tests/test_workerconfig.py
+++ b/edx_proctoring/tests/test_workerconfig.py
@@ -6,7 +6,7 @@
 import tempfile
 import unittest
 
-from unittest.mock import patch
+from mock import patch
 
 from django.conf import settings