diff --git a/python-smpplib-no-mock.patch b/python-smpplib-no-mock.patch
new file mode 100644
index 0000000..acbab58
--- /dev/null
+++ b/python-smpplib-no-mock.patch
@@ -0,0 +1,22 @@
+diff -upr python-smpplib-2.2.1.orig/smpplib/tests/test_client.py python-smpplib-2.2.1/smpplib/tests/test_client.py
+--- python-smpplib-2.2.1.orig/smpplib/tests/test_client.py	2022-05-04 09:38:34.127959320 +0200
++++ python-smpplib-2.2.1/smpplib/tests/test_client.py	2022-05-04 09:38:34.147959444 +0200
+@@ -1,6 +1,6 @@
+ import warnings
+ import pytest
+-from mock import Mock, call
++from unittest.mock import Mock, call
+ 
+ from smpplib.client import Client
+ from smpplib.smpp import make_pdu
+diff -upr python-smpplib-2.2.1.orig/smpplib/tests/test_gsm.py python-smpplib-2.2.1/smpplib/tests/test_gsm.py
+--- python-smpplib-2.2.1.orig/smpplib/tests/test_gsm.py	2022-05-04 09:38:34.127959320 +0200
++++ python-smpplib-2.2.1/smpplib/tests/test_gsm.py	2022-05-04 09:38:34.147959444 +0200
+@@ -1,6 +1,6 @@
+ # -*- coding: utf8 -*-
+ 
+-import mock
++from unittest import mock
+ from pytest import mark, raises
+ 
+ from smpplib import consts
diff --git a/python-smpplib.changes b/python-smpplib.changes
index 7070482..c9f5813 100644
--- a/python-smpplib.changes
+++ b/python-smpplib.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed May  4 07:55:32 UTC 2022 - pgajdos@suse.com
+
+- added patches
+  fix https://github.com/python-smpplib/python-smpplib/issues/200
+  + python-smpplib-no-mock.patch
+
 -------------------------------------------------------------------
 Mon Nov 22 11:07:55 UTC 2021 - Martin Hauke <mardnh@gmx.de>
 
diff --git a/python-smpplib.spec b/python-smpplib.spec
index 56178fd..d94f277 100644
--- a/python-smpplib.spec
+++ b/python-smpplib.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-smpplib
 #
-# Copyright (c) 2021 SUSE LLC
+# Copyright (c) 2022 SUSE LLC
 # Copyright (c) 2016-2021, Martin Hauke <mardnh@gmx.de>
 #
 # All modifications and additions to the file contributed by third parties
@@ -27,12 +27,13 @@ Group:          Development/Languages/Python
 URL:            https://pypi.org/project/smpplib/
 #Git-Clone:     https://github.com/python-smpplib/python-smpplib.git
 Source:         https://github.com/python-smpplib/python-smpplib/archive/%{version}.tar.gz#/smpplib-%{version}.tar.gz
+# https://github.com/python-smpplib/python-smpplib/issues/200
+Patch0:         python-smpplib-no-mock.patch
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module six}
 BuildRequires:  python-rpm-macros
 # SECTION test requirements
 BuildRequires:  %{python_module pytest}
-BuildRequires:  %{python_module mock}
 # /SECTION
 BuildRequires:  fdupes
 Requires:       python-six
@@ -47,6 +48,7 @@ allows you to send and receive SMS to an SMS gateway or SMSC.
 
 %prep
 %setup -q -n python-smpplib-%{version}
+%patch0 -p1
 
 %build
 %python_build