diff --git a/common/djangoapps/student/tests/test_authz.py b/common/djangoapps/student/tests/test_authz.py
index 048ec34c5f..03b3f9e3b3 100644
--- a/common/djangoapps/student/tests/test_authz.py
+++ b/common/djangoapps/student/tests/test_authz.py
@@ -113,7 +113,10 @@ class CreatorGroupTest(TestCase):
 
     def test_add_user_to_group_requires_authenticated(self):
         with self.assertRaises(PermissionDenied):
-            with mock.patch('django.contrib.auth.models.User.is_authenticated') as mock_is_auth:
+            with mock.patch(
+                'django.contrib.auth.models.User.is_authenticated',
+                new_callable=mock.PropertyMock
+            ) as mock_is_auth:
                 mock_is_auth.return_value = False
                 add_users(self.admin, CourseCreatorRole(), self.user)
 
@@ -129,7 +132,10 @@ class CreatorGroupTest(TestCase):
 
     def test_remove_user_from_group_requires_authenticated(self):
         with self.assertRaises(PermissionDenied):
-            with mock.patch('django.contrib.auth.models.User.is_authenticated') as mock_is_auth:
+            with mock.patch(
+                'django.contrib.auth.models.User.is_authenticated',
+                new_callable=mock.PropertyMock
+            ) as mock_is_auth:
                 mock_is_auth.return_value = False
                 remove_users(self.admin, CourseCreatorRole(), self.user)
 
diff --git a/lms/djangoapps/courseware/tests/test_views.py b/lms/djangoapps/courseware/tests/test_views.py
index 1958491851..594c2e546c 100644
--- a/lms/djangoapps/courseware/tests/test_views.py
+++ b/lms/djangoapps/courseware/tests/test_views.py
@@ -512,9 +512,9 @@ class ViewsTestCase(ModuleStoreTestCase):
             self.assertEqual(EcommerceService().is_enabled(AnonymousUser()), False)
 
     def test_user_groups(self):
-        # depreciated function
+        # deprecated function
         mock_user = MagicMock()
-        mock_user.is_authenticated.return_value = False
+        type(mock_user).is_authenticated = PropertyMock(return_value=False)
         self.assertEqual(views.user_groups(mock_user), [])
 
     def test_get_redirect_url(self):
diff --git a/lms/djangoapps/lti_provider/tests/test_users.py b/lms/djangoapps/lti_provider/tests/test_users.py
index e9bf32354d..4461ea9297 100644
--- a/lms/djangoapps/lti_provider/tests/test_users.py
+++ b/lms/djangoapps/lti_provider/tests/test_users.py
@@ -8,7 +8,7 @@ from django.contrib.auth.models import User
 from django.core.exceptions import PermissionDenied
 from django.test import TestCase
 from django.test.client import RequestFactory
-from mock import MagicMock, patch
+from mock import MagicMock, patch, PropertyMock
 
 import lti_provider.users as users
 from lti_provider.models import LtiConsumer, LtiUser
@@ -124,7 +124,7 @@ class AuthenticateLtiUserTest(TestCase):
     def test_authentication_with_unauthenticated_user(self, create_user, switch_user):
         lti_user = self.create_lti_user_model()
         self.request.user = lti_user.edx_user
-        with patch('django.contrib.auth.models.User.is_authenticated') as mock_is_auth:
+        with patch('django.contrib.auth.models.User.is_authenticated', new_callable=PropertyMock) as mock_is_auth:
             mock_is_auth.return_value = False
             users.authenticate_lti_user(self.request, self.lti_user_id, self.lti_consumer)
             self.assertFalse(create_user.called)