diff --git a/python-virtualenv.spec b/python-virtualenv.spec
index 38dc59c..cade4ed 100644
--- a/python-virtualenv.spec
+++ b/python-virtualenv.spec
@@ -1,5 +1,6 @@
+%define pkgname %(echo %name | cut -d- -f2- | tr - _)
 Name:          python-virtualenv
-Version:       20.17.1
+Version:       20.19.0
 Release:       1mamba
 Summary:       Virtual Python Environment builder
 Group:         System/Libraries/Python
@@ -15,7 +16,6 @@ BuildRequires: python3.7dist(distlib)
 BuildRequires: python3.7dist(filelock)
 BuildRequires: python3.7dist(importlib-metadata)
 BuildRequires: python3.7dist(platformdirs)
-BuildRequires: python3.7dist(setuptools)
 ## AUTOBUILDREQ-END
 BuildRequires: help2man
 BuildArch:     noarch
@@ -37,40 +37,35 @@ Obsoletes:     python-virtualenv-py36 < 20.4.0
 %prep
 %setup -q -n virtualenv-%{version}
 # Removed unsatisfyable requirement versions
-sed -i "s|platformdirs.*|platformdirs|" setup.cfg
-sed -i "s|backports.entry_points_selectable.*|backports.entry_points_selectable|" setup.cfg
+#sed -i "s|platformdirs.*|platformdirs|" setup.cfg
+#sed -i "s|backports.entry_points_selectable.*|backports.entry_points_selectable|" setup.cfg
 
 %build
-%{__python} setup.py build
+CFLAGS="%{optflags}" %{__python} -m build --no-isolation --wheel
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%{__python} setup.py install \
-   -O1 --skip-build \
-   --root="%{buildroot}" \
-   --install-headers=%{_includedir}/python \
-   --install-lib=%{python_sitearch} \
-   --single-version-externally-managed \
-   --record=%{name}.filelist
-
-sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
-
-install -d %{buildroot}%{_mandir}/man1
+%{__python} -m installer --destdir=%{buildroot} dist/*.whl
 
 %if "%{?with_pyver}" != "3"
-mv %{buildroot}%{_bindir}/virtualenv{,-%{?pyappend}}
-sed -i "s|%{_bindir}/virtualenv|%{_bindir}/virtualenv-%{?pyappend}|" %{name}.filelist
+# Rename any conflicting file outside of python site packages tree
+for f in %{_bindir}/virtualenv; do
+   mv %{buildroot}${f}{,-%{?pyappend}}
+done
 %endif
 
-%clean
-[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-
-%files  %{?pyappend} -f %{name}.filelist
+%files %{?pyappend}
 %defattr(-,root,root)
-%dir %{python_sitearch}/virtualenv-%{version}-py*.egg-info
-%{python_sitearch}/virtualenv-%{version}-py*.egg-info/*
+%{_bindir}/virtualenv*
+%dir %{python_sitelib}/%{pkgname}-%{version}.dist-info
+%{python_sitelib}/%{pkgname}-%{version}.dist-info/*
+%dir %{python_sitelib}/%{pkgname}
+%{python_sitelib}/%{pkgname}/*
 
 %changelog
+* Sat Feb 11 2023 Automatic Build System <autodist@mambasoft.it> 20.19.0-1mamba
+- automatic version update by autodist
+
 * Tue Dec 06 2022 Automatic Build System <autodist@mambasoft.it> 20.17.1-1mamba
 - automatic version update by autodist