diff --git a/addons/account_budget/tests/test_theoreticalamount.py b/addons/account_budget/tests/test_theoreticalamount.py
index 6b499302fe0..cde8f81a9b6 100644
--- a/addons/account_budget/tests/test_theoreticalamount.py
+++ b/addons/account_budget/tests/test_theoreticalamount.py
@@ -2,7 +2,10 @@
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
 from .common import TestAccountBudgetCommon
-from mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
 
 from odoo.fields import Datetime
 
diff --git a/addons/event/tests/test_event_flow.py b/addons/event/tests/test_event_flow.py
index f9a7ad47fa4..c780a95eb34 100644
--- a/addons/event/tests/test_event_flow.py
+++ b/addons/event/tests/test_event_flow.py
@@ -7,7 +7,10 @@ from odoo.addons.event.tests.common import TestEventCommon
 from odoo.exceptions import ValidationError, UserError, AccessError
 from odoo.tools import mute_logger
 from odoo.fields import Datetime
-from mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
 
 
 class TestEventFlow(TestEventCommon):
diff --git a/addons/website_crm_partner_assign/tests/test_partner_assign.py b/addons/website_crm_partner_assign/tests/test_partner_assign.py
index 9d1689b3286..3b4344e255f 100644
--- a/addons/website_crm_partner_assign/tests/test_partner_assign.py
+++ b/addons/website_crm_partner_assign/tests/test_partner_assign.py
@@ -1,7 +1,10 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
 from odoo.exceptions import AccessError
 
 from odoo.tests.common import TransactionCase
diff --git a/addons/website_sale/tests/test_website_sale_pricelist.py b/addons/website_sale/tests/test_website_sale_pricelist.py
index 21accb52814..754a49432d6 100644
--- a/addons/website_sale/tests/test_website_sale_pricelist.py
+++ b/addons/website_sale/tests/test_website_sale_pricelist.py
@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
-from mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
 from odoo.tests.common import TransactionCase