diff --git a/obs-service-set_version.spec b/obs-service-set_version.spec
index f121d3f..e4995c1 100644
--- a/obs-service-set_version.spec
+++ b/obs-service-set_version.spec
@@ -30,6 +30,7 @@ Source:         %{name}-%{version}.tar.gz
 %if %{with obs_scm_testsuite}
 BuildRequires:  python3-ddt
 BuildRequires:  python3-flake8
+BuildRequires:  python3-packaging
 %endif
 %if 0%{?suse_version}
 %if 0%{?suse_version} > 1315