diff --git a/python-pytest-virtualenv.changes b/python-pytest-virtualenv.changes
index be5a37f..864e64b 100644
--- a/python-pytest-virtualenv.changes
+++ b/python-pytest-virtualenv.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Fri Dec 11 22:44:02 UTC 2020 - Matej Cepl <mcepl@suse.com>
+
+- Add remove_mock.patch to remove dependency on the external mock
+  package (gh#man-group/pytest-plugins#168). Also add
+  remove_virtualenv.patch to remove dependency on external
+  virtualenv package.
+
 -------------------------------------------------------------------
 Mon Jun  3 08:53:22 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
 
diff --git a/python-pytest-virtualenv.spec b/python-pytest-virtualenv.spec
index 8226442..acfcdc3 100644
--- a/python-pytest-virtualenv.spec
+++ b/python-pytest-virtualenv.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-pytest-virtualenv
 #
-# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2020 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -25,21 +25,25 @@ License:        MIT
 Group:          Development/Languages/Python
 URL:            https://github.com/manahl/pytest-plugins
 Source:         https://files.pythonhosted.org/packages/source/p/pytest-virtualenv/pytest-virtualenv-%{version}.tar.gz
-BuildRequires:  %{python_module mock}
+# PATCH-FIX-UPSTREAM remove_mock.patch gh#man-group/pytest-plugins#168 mcepl@suse.com
+# remove dependency on the external module mock
+Patch0:         remove_mock.patch
+# PATCH-FIX-UPSTREAM remove_mock.patch gh#man-group/pytest-plugins#168 mcepl@suse.com
+# and while at it, we can remove dependency on the external module
+# virtualenv as well
+Patch1:         remove_virtualenv.patch
 BuildRequires:  %{python_module path.py}
 BuildRequires:  %{python_module pytest-fixture-config}
 BuildRequires:  %{python_module pytest-shutil}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools-git}
 BuildRequires:  %{python_module setuptools}
-BuildRequires:  %{python_module virtualenv}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-path.py
 Requires:       python-pytest-fixture-config
 Requires:       python-pytest-shutil
 Requires:       python-setuptools
-Requires:       python-virtualenv
 BuildArch:      noarch
 %python_subpackages
 
@@ -49,7 +53,7 @@ teardown. The fixture has utility methods to install packages and list
 what's installed.
 
 %prep
-%setup -q -n pytest-virtualenv-%{version}
+%autosetup -p1 -n pytest-virtualenv-%{version}
 
 %build
 %python_build
diff --git a/remove_mock.patch b/remove_mock.patch
new file mode 100644
index 0000000..95812c3
--- /dev/null
+++ b/remove_mock.patch
@@ -0,0 +1,26 @@
+--- a/tests/unit/test_venv.py
++++ b/tests/unit/test_venv.py
+@@ -1,4 +1,4 @@
+-import mock
++from unittest.mock import patch
+ 
+ import pytest_virtualenv as venv
+ from pytest_shutil import env
+@@ -6,7 +6,7 @@ from pytest_shutil import env
+ 
+ def test_PYTHONPATH_not_present_in_testing_env_if_set():
+     with env.set_env('PYTHONPATH', 'fred'):
+-        with mock.patch.object(venv.Workspace, 'run') as run:
++        with patch.object(venv.Workspace, 'run') as run:
+             venv.VirtualEnv()
+             call = run.mock_calls[0]
+             assert 'PYTHONPATH' not in call[2]['env']
+@@ -18,7 +18,7 @@ def test_PYTHONPATH_not_present_in_testi
+ 
+ def test_PYTHONPATH_not_present_in_testing_env_if_unset():
+     with env.no_env('PYTHONPATH'):
+-        with mock.patch.object(venv.Workspace, 'run') as run:
++        with patch.object(venv.Workspace, 'run') as run:
+             venv.VirtualEnv()
+             call = run.mock_calls[0]
+             assert 'PYTHONPATH' not in call[2]['env']
diff --git a/remove_virtualenv.patch b/remove_virtualenv.patch
new file mode 100644
index 0000000..36d163f
--- /dev/null
+++ b/remove_virtualenv.patch
@@ -0,0 +1,23 @@
+---
+ pytest_virtualenv.py |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/pytest_virtualenv.py
++++ b/pytest_virtualenv.py
+@@ -21,7 +21,7 @@ class FixtureConfig(Config):
+ 
+ # Default values for system resource locations - patch this to change defaults
+ # Can be a string or list of them
+-DEFAULT_VIRTUALENV_FIXTURE_EXECUTABLE = [sys.executable, '-m', 'virtualenv']
++DEFAULT_VIRTUALENV_FIXTURE_EXECUTABLE = [sys.executable, '-m', 'venv']
+ 
+ CONFIG = FixtureConfig(
+     virtualenv_executable=os.getenv('VIRTUALENV_FIXTURE_EXECUTABLE', DEFAULT_VIRTUALENV_FIXTURE_EXECUTABLE),
+@@ -137,7 +137,6 @@ class VirtualEnv(Workspace):
+             cmd = [self.virtualenv_cmd]
+         else:
+             cmd = list(self.virtualenv_cmd)
+-        cmd.extend(['-p', python or cmdline.get_real_python_executable()])
+         cmd.extend(self.args)
+         cmd.append(str(self.virtualenv))
+         self.run(cmd)