diff --git a/python-toposort.spec b/python-toposort.spec
index f8d49ca..3779636 100644
--- a/python-toposort.spec
+++ b/python-toposort.spec
@@ -1,7 +1,7 @@
 %define pkgname %(echo %name | cut -d- -f2- | tr - _)
 Name:          python-toposort
-Version:       1.6
-Release:       2mamba
+Version:       1.7
+Release:       1mamba
 Summary:       Implements a topological sort algorithm
 Group:         System/Libraries
 Vendor:        openmamba
@@ -25,25 +25,24 @@ BuildRequires: libpython3-devel
 %setup -q -n toposort-%{version}
 
 %build
-CFLAGS="%{optflags}" %{__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=%{python_inc} \
-   --install-lib=%{python_sitearch} \
-   --record=%{name}.filelist
+%{__python} -m installer --destdir=%{buildroot} dist/*.whl
 
-sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
-
-%files %{?pyappend} -f %{name}.filelist
+%files %{?pyappend}
 %defattr(-,root,root)
-%dir %{python_sitearch}/%{pkgname}-%{version}-py*.egg-info
-%{python_sitearch}/%{pkgname}-%{version}-py*.egg-info/*
+%dir %{python_sitelib}/%{pkgname}-%{version}.dist-info
+%{python_sitelib}/%{pkgname}-%{version}.dist-info/*
+%{python_sitelib}/%{pkgname}.py
+%{python_sitelib}/__pycache__/toposort.cpython-*.pyc
+%doc LICENSE.txt
 
 %changelog
+* Fri Oct 07 2022 Automatic Build System <autodist@mambasoft.it> 1.7-1mamba
+- automatic version update by autodist
+
 * Mon Feb 14 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 1.6-2mamba
 - rebuilt with distdeps