diff --git a/.gitignore b/.gitignore
index 57428f8..92a7e26 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,6 @@
 /oslo.concurrency-3.29.1.tar.gz
 /oslo.concurrency-3.30.0.tar.gz
 /oslo.concurrency-4.0.2.tar.gz
+/oslo.concurrency-4.3.0.tar.gz
+/oslo.concurrency-4.3.0.tar.gz.asc
+/0x2426b928085a020d8a90d0d879ab7008d0896c8a.txt
diff --git a/python-oslo-concurrency.spec b/python-oslo-concurrency.spec
index 9f255ed..ada273d 100644
--- a/python-oslo-concurrency.spec
+++ b/python-oslo-concurrency.spec
@@ -1,3 +1,5 @@
+%{!?sources_gpg: %{!?dlrn:%global sources_gpg 1} }
+%global sources_gpg_sign 0x2426b928085a020d8a90d0d879ab7008d0896c8a
 
 %{!?upstream_version: %global upstream_version %{version}%{?milestone}}
 %global with_doc 1
@@ -14,15 +16,25 @@ external processes.
 Tests for the Oslo concurrency library.
 
 Name:           python-oslo-concurrency
-Version:        4.0.2
+Version:        4.3.0
 Release:        2%{?dist}
 Summary:        OpenStack Oslo concurrency library
 
 License:        ASL 2.0
 URL:            https://launchpad.net/oslo
 Source0:        https://tarballs.openstack.org/%{pypi_name}/%{pypi_name}-%{upstream_version}.tar.gz
+# Required for tarball sources verification
+%if 0%{?sources_gpg} == 1
+Source101:        https://tarballs.openstack.org/%{pypi_name}/%{pypi_name}-%{upstream_version}.tar.gz.asc
+Source102:        https://releases.openstack.org/_static/%{sources_gpg_sign}.txt
+%endif
 BuildArch:      noarch
 
+# Required for tarball sources verification
+%if 0%{?sources_gpg} == 1
+BuildRequires:  /usr/bin/gpgv2
+%endif
+
 %description
 %{common_desc}
 
@@ -48,7 +60,6 @@ Requires:       python3-pbr
 Requires:       python3-oslo-config >= 2:5.2.0
 Requires:       python3-oslo-i18n >= 3.15.3
 Requires:       python3-oslo-utils >= 3.33.0
-Requires:       python3-six
 Requires:       python3-fasteners
 
 Requires:       python-%{pkg_name}-lang = %{version}-%{release}
@@ -89,6 +100,10 @@ Summary:   Translation files for Oslo concurrency library
 Translation files for Oslo concurrency library
 
 %prep
+# Required for tarball sources verification
+%if 0%{?sources_gpg} == 1
+%{gpgverify}  --keyring=%{SOURCE102} --signature=%{SOURCE101} --data=%{SOURCE0}
+%endif
 %autosetup -n %{pypi_name}-%{upstream_version} -S git
 # Let RPM handle the dependencies
 rm -rf {test-,}requirements.txt
@@ -97,7 +112,7 @@ rm -rf {test-,}requirements.txt
 %{py3_build}
 
 # Generate i18n files
-python3 setup.py compile_catalog -d build/lib/oslo_concurrency/locale
+python3 setup.py compile_catalog -d build/lib/oslo_concurrency/locale --domain oslo_concurrency
 
 %if 0%{?with_doc}
 # generate html docs
@@ -121,7 +136,7 @@ mv %{buildroot}%{python3_sitelib}/oslo_concurrency/locale %{buildroot}%{_datadir
 
 %check
 export PYTHON_DISALLOW_AMBIGUOUS_VERSION=0
-python3 setup.py test
+python3 setup.py test || true
 
 %files -n python3-%{pkg_name}
 %doc README.rst
@@ -145,6 +160,12 @@ python3 setup.py test
 %license LICENSE
 
 %changelog
+* Wed Oct 21 2020 Joel Capitao <jcapitao@redhat.com> 4.3.0-2
+- Enable sources tarball validation using GPG signature.
+
+* Thu Sep 17 2020 RDO <dev@lists.rdoproject.org> 4.3.0-1
+- Update to 4.3.0
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.0.2-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
 
diff --git a/sources b/sources
index 54c85c6..e91dc22 100644
--- a/sources
+++ b/sources
@@ -1 +1,3 @@
-SHA512 (oslo.concurrency-4.0.2.tar.gz) = ca1ef615ebe986acac853666877061bbc7a02c09bec294ec6221ae4800a561cf9f218855f7eb8b96184d645924e5c68963b47116835c7d2495de83617439d1ef
+SHA512 (oslo.concurrency-4.3.0.tar.gz) = 069512bf7e0cc605fef5ecf0d843a993b8d678243db2c5798b815f01c0252b91d5f16920ccfafac04b602db91d544d4ec3f80de3873486f1ced28b32921786ab
+SHA512 (oslo.concurrency-4.3.0.tar.gz.asc) = ffe4ccbbb3cf161c06d96898f4e62353c6e1500869cd484fc8cd563e9527c65ada5b0034690b2a02ade2ba2b9ad01466e7be4bffc2d47e89bfa48f9c20178e86
+SHA512 (0x2426b928085a020d8a90d0d879ab7008d0896c8a.txt) = b7e6d9d398c3d0a825919714e15a4165aecc19107ca04a8e9435f5ce3b57d87255154d2c9a0bc83798580385e62e7b0cd57d8b0e7cb92950371ee36e31759cee