diff --git a/python-mock.spec b/python-mock.spec
index 029af960fc71402d0800bf19e93c99fb461210a6..3a72ab6e65304ae728c6a092fdce3cbb6a60c729 100644
--- a/python-mock.spec
+++ b/python-mock.spec
@@ -7,7 +7,7 @@ needed attributes in the normal way. \
 
 Name:           python-mock
 Version:        4.0.2
-Release:        1
+Release:        2
 Summary:        A Python Mocking and Patching Library for Testing
 License:        BSD
 URL:            http://www.voidspace.org.uk/python/mock/
@@ -15,7 +15,7 @@ Source0:        http://pypi.python.org/packages/source/m/mock/mock-%{version}.ta
 
 BuildArch:      noarch
 
-BuildRequires:  python3-devel python3-setuptools python3-funcsigs python3-pbr python3-unittest2 python3-pytest
+BuildRequires:  python3-devel python3-setuptools python3-pbr python3-unittest2 python3-pytest
 
 %description
 %{_description__}
@@ -23,7 +23,7 @@ BuildRequires:  python3-devel python3-setuptools python3-funcsigs python3-pbr py
 %package -n     python3-mock
 Summary:        Python3 subpackage for %{name}
 %{?python_provide:%python_provide python3-mock}
-Requires:       python3-funcsigs python3-pbr python3-six >= 1.9.0
+Requires:       python3-pbr python3-six >= 1.9.0
 
 %description -n python3-mock
 This is the python3 subpackage for %{name}.
@@ -46,7 +46,11 @@ This is the python3 subpackage for %{name}.
 %{python3_sitelib}/{*.egg-info,mock}
 
 %changelog
+* Thu Aug 20 2020 tianwei <tianwei12@huawei.com> - 4.0.2-2
+- Don't require funcsigs on python3, it's part of the standard library
+
 * Sat Jul 25 2020 tianwei <tianwei12@huawei.com> - 4.0.2-1
 - Package update to 4.0.2
+
 * Thu Oct 17 2019 huzhiyu <huzhiyu1@huawei.com> - 2.0.0-11
 - Package init