diff --git a/python-pip.changes b/python-pip.changes
index 33efb6c..50a4631 100644
--- a/python-pip.changes
+++ b/python-pip.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Dec 11 22:13:56 UTC 2020 - Matej Cepl <mcepl@suse.com>
+
+- Add remove_mock.patch to remove dependency on the external mock
+  package (gh#pypa/pip#9266).
+
 -------------------------------------------------------------------
 Mon Nov 16 16:37:45 UTC 2020 - Matej Cepl <mcepl@suse.com>
 
diff --git a/python-pip.spec b/python-pip.spec
index 22c6730..e917bc5 100644
--- a/python-pip.spec
+++ b/python-pip.spec
@@ -42,6 +42,9 @@ URL:            http://www.pip-installer.org
 Source:         https://github.com/pypa/pip/archive/%{version}.tar.gz#/pip-%{version}-gh.tar.gz
 # PATCH-FIX-OPENSUSE pip-shipped-requests-cabundle.patch -- adapted patch from python-certifi package
 Patch0:         pip-shipped-requests-cabundle.patch
+# PATCH-FIX-UPSTREAM remove_mock.patch gh#pypa/pip#9266 mcepl@suse.com
+# remove dependency on the external module mock
+Patch1:         remove_mock.patch
 BuildRequires:  %{python_module setuptools >= 40.8.0}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
@@ -61,7 +64,6 @@ BuildRequires:  %{python_module cryptography}
 BuildRequires:  %{python_module csv23}
 BuildRequires:  %{python_module docutils}
 BuildRequires:  %{python_module freezegun}
-BuildRequires:  %{python_module mock}
 BuildRequires:  %{python_module pretend}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module scripttest}
@@ -83,10 +85,10 @@ finding packages, so packages that were made easy_installable should be
 pip-installable as well.
 
 %prep
-%setup -q -n pip-%{version}
 # Unbundling is not advised by upstream. See src/pip/_vendor/README.rst
 # Exception: Use our own cabundle. Adapted patch from python-certifi package
-%patch0 -p1
+%autosetup -p1 -n pip-%{version}
+
 rm src/pip/_vendor/certifi/cacert.pem
 
 %if %{with test}
diff --git a/remove_mock.patch b/remove_mock.patch
new file mode 100644
index 0000000..c8c2c3c
--- /dev/null
+++ b/remove_mock.patch
@@ -0,0 +1,296 @@
+---
+ tests/functional/test_help.py                     |    2 +-
+ tests/lib/server.py                               |    2 +-
+ tests/unit/resolution_resolvelib/test_resolver.py |    2 +-
+ tests/unit/test_base_command.py                   |    2 +-
+ tests/unit/test_check.py                          |    2 +-
+ tests/unit/test_collector.py                      |    4 ++--
+ tests/unit/test_command_install.py                |    2 +-
+ tests/unit/test_commands.py                       |    2 +-
+ tests/unit/test_configuration.py                  |    2 +-
+ tests/unit/test_direct_url_helpers.py             |    2 +-
+ tests/unit/test_finder.py                         |    2 +-
+ tests/unit/test_locations.py                      |    2 +-
+ tests/unit/test_logging.py                        |    2 +-
+ tests/unit/test_network_cache.py                  |    2 +-
+ tests/unit/test_operations_prepare.py             |    2 +-
+ tests/unit/test_req.py                            |    2 +-
+ tests/unit/test_req_file.py                       |    2 +-
+ tests/unit/test_req_uninstall.py                  |    2 +-
+ tests/unit/test_resolution_legacy_resolver.py     |    4 ++--
+ tests/unit/test_target_python.py                  |    2 +-
+ tests/unit/test_utils.py                          |    2 +-
+ tests/unit/test_utils_compatibility_tags.py       |    2 +-
+ tests/unit/test_vcs.py                            |    2 +-
+ tests/unit/test_wheel.py                          |    2 +-
+ tests/unit/test_wheel_builder.py                  |    2 +-
+ 25 files changed, 27 insertions(+), 27 deletions(-)
+
+--- a/tests/lib/server.py
++++ b/tests/lib/server.py
+@@ -5,7 +5,7 @@ import threading
+ from contextlib import contextmanager
+ from textwrap import dedent
+ 
+-from mock import Mock
++from unittest.mock import Mock
+ from pip._vendor.contextlib2 import nullcontext
+ from werkzeug.serving import WSGIRequestHandler
+ from werkzeug.serving import make_server as _make_server
+--- a/tests/unit/test_base_command.py
++++ b/tests/unit/test_base_command.py
+@@ -3,7 +3,7 @@ import os
+ import time
+ 
+ import pytest
+-from mock import Mock, patch
++from unittest.mock import Mock, patch
+ 
+ from pip._internal.cli.base_command import Command
+ from pip._internal.cli.status_codes import SUCCESS
+--- a/tests/unit/test_commands.py
++++ b/tests/unit/test_commands.py
+@@ -1,5 +1,5 @@
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ 
+ from pip._internal.cli.req_command import (
+     IndexGroupCommand,
+--- a/tests/unit/test_network_cache.py
++++ b/tests/unit/test_network_cache.py
+@@ -1,7 +1,7 @@
+ import os
+ 
+ import pytest
+-from mock import Mock
++from unittest.mock import Mock
+ from pip._vendor.cachecontrol.caches import FileCache
+ 
+ from pip._internal.network.cache import SafeFileCache
+--- a/tests/unit/test_req_file.py
++++ b/tests/unit/test_req_file.py
+@@ -5,7 +5,7 @@ import subprocess
+ import textwrap
+ 
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ from pip._vendor.six import PY2
+ from pretend import stub
+ 
+--- a/tests/unit/test_resolution_legacy_resolver.py
++++ b/tests/unit/test_resolution_legacy_resolver.py
+@@ -1,6 +1,6 @@
+ import logging
+ 
+-import mock
++import unittest.mock as mock
+ import pytest
+ from pip._vendor import pkg_resources
+ 
+--- a/tests/unit/test_target_python.py
++++ b/tests/unit/test_target_python.py
+@@ -1,5 +1,5 @@
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ 
+ from pip._internal.models.target_python import TargetPython
+ from tests.lib import CURRENT_PY_VERSION_INFO, pyversion
+--- a/tests/unit/test_utils.py
++++ b/tests/unit/test_utils.py
+@@ -14,7 +14,7 @@ import time
+ from io import BytesIO
+ 
+ import pytest
+-from mock import Mock, patch
++from unittest.mock import Mock, patch
+ 
+ from pip._internal.exceptions import (
+     HashMismatch,
+--- a/tests/unit/test_utils_compatibility_tags.py
++++ b/tests/unit/test_utils_compatibility_tags.py
+@@ -1,7 +1,7 @@
+ import sysconfig
+ 
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ 
+ from pip._internal.utils import compatibility_tags
+ 
+--- a/tests/unit/test_vcs.py
++++ b/tests/unit/test_vcs.py
+@@ -2,7 +2,7 @@ import os
+ from unittest import TestCase
+ 
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ from pip._vendor.packaging.version import parse as parse_version
+ 
+ from pip._internal.exceptions import BadCommand, InstallationError
+--- a/tests/unit/test_wheel.py
++++ b/tests/unit/test_wheel.py
+@@ -8,7 +8,7 @@ import textwrap
+ from email import message_from_string
+ 
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ from pip._vendor.packaging.requirements import Requirement
+ 
+ from pip._internal.exceptions import InstallationError
+--- a/tests/unit/test_wheel_builder.py
++++ b/tests/unit/test_wheel_builder.py
+@@ -1,7 +1,7 @@
+ import logging
+ 
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ 
+ from pip._internal import wheel_builder
+ from pip._internal.models.link import Link
+--- a/tests/functional/test_help.py
++++ b/tests/functional/test_help.py
+@@ -1,5 +1,5 @@
+ import pytest
+-from mock import Mock
++from unittest.mock import Mock
+ 
+ from pip._internal.cli.status_codes import ERROR, SUCCESS
+ from pip._internal.commands import commands_dict, create_command
+--- a/tests/unit/resolution_resolvelib/test_resolver.py
++++ b/tests/unit/resolution_resolvelib/test_resolver.py
+@@ -1,4 +1,4 @@
+-import mock
++import unittest.mock as mock
+ import pytest
+ from pip._vendor.packaging.utils import canonicalize_name
+ from pip._vendor.resolvelib.resolvers import Result
+--- a/tests/unit/test_check.py
++++ b/tests/unit/test_check.py
+@@ -1,7 +1,7 @@
+ """Unit Tests for pip's dependency checking logic
+ """
+ 
+-import mock
++import unittest.mock as mock
+ 
+ from pip._internal.operations import check
+ 
+--- a/tests/unit/test_collector.py
++++ b/tests/unit/test_collector.py
+@@ -4,10 +4,10 @@ import re
+ import uuid
+ from textwrap import dedent
+ 
+-import mock
++import unittest.mock as mock
+ import pretend
+ import pytest
+-from mock import Mock, patch
++from unittest.mock import Mock, patch
+ from pip._vendor import html5lib, requests
+ from pip._vendor.six.moves.urllib import request as urllib_request
+ 
+--- a/tests/unit/test_command_install.py
++++ b/tests/unit/test_command_install.py
+@@ -1,7 +1,7 @@
+ import errno
+ 
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ from pip._vendor.packaging.requirements import Requirement
+ 
+ from pip._internal.commands.install import (
+--- a/tests/unit/test_configuration.py
++++ b/tests/unit/test_configuration.py
+@@ -4,7 +4,7 @@
+ import os
+ 
+ import pytest
+-from mock import MagicMock
++from unittest.mock import MagicMock
+ 
+ from pip._internal.configuration import get_configuration_files, kinds
+ from pip._internal.exceptions import ConfigurationError
+--- a/tests/unit/test_direct_url_helpers.py
++++ b/tests/unit/test_direct_url_helpers.py
+@@ -1,6 +1,6 @@
+ from functools import partial
+ 
+-from mock import MagicMock, patch
++from unittest.mock import MagicMock, patch
+ 
+ from pip._internal.models.direct_url import (
+     DIRECT_URL_METADATA_NAME,
+--- a/tests/unit/test_finder.py
++++ b/tests/unit/test_finder.py
+@@ -2,7 +2,7 @@ import logging
+ import sys
+ 
+ import pytest
+-from mock import Mock, patch
++from unittest.mock import Mock, patch
+ from pip._vendor.packaging.specifiers import SpecifierSet
+ from pip._vendor.packaging.tags import Tag
+ from pkg_resources import parse_version
+--- a/tests/unit/test_locations.py
++++ b/tests/unit/test_locations.py
+@@ -9,7 +9,7 @@ import sys
+ import tempfile
+ 
+ import pytest
+-from mock import Mock
++from unittest.mock import Mock
+ 
+ from pip._internal.locations import distutils_scheme
+ 
+--- a/tests/unit/test_logging.py
++++ b/tests/unit/test_logging.py
+@@ -5,7 +5,7 @@ import time
+ from threading import Thread
+ 
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ from pip._vendor.six import PY2
+ 
+ from pip._internal.utils.logging import (
+--- a/tests/unit/test_operations_prepare.py
++++ b/tests/unit/test_operations_prepare.py
+@@ -4,7 +4,7 @@ from shutil import rmtree
+ from tempfile import mkdtemp
+ 
+ import pytest
+-from mock import Mock, patch
++from unittest.mock import Mock, patch
+ 
+ from pip._internal.exceptions import HashMismatch
+ from pip._internal.models.link import Link
+--- a/tests/unit/test_req.py
++++ b/tests/unit/test_req.py
+@@ -6,7 +6,7 @@ import tempfile
+ from functools import partial
+ 
+ import pytest
+-from mock import patch
++from unittest.mock import patch
+ from pip._vendor import pkg_resources
+ from pip._vendor.packaging.markers import Marker
+ from pip._vendor.packaging.requirements import Requirement
+--- a/tests/unit/test_req_uninstall.py
++++ b/tests/unit/test_req_uninstall.py
+@@ -2,7 +2,7 @@ import os
+ import sys
+ 
+ import pytest
+-from mock import Mock
++from unittest.mock import Mock
+ 
+ import pip._internal.req.req_uninstall
+ from pip._internal.req.req_uninstall import (