diff --git a/README.md b/README.md
index 5ea719e..06ebef8 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
 # python-cycler
 
-mathplotlib libraty - composable cycles.
+mathplotlib library - composable cycles.
 
diff --git a/python-cycler.spec b/python-cycler.spec
index 590d17b..59ec04e 100644
--- a/python-cycler.spec
+++ b/python-cycler.spec
@@ -1,7 +1,8 @@
+%define pkgname %(echo %name | cut -d- -f2- | tr - _)
 Name:          python-cycler
-Version:       0.11.0
-Release:       3mamba
-Summary:       mathplotlib libraty - composable cycles
+Version:       0.12.1
+Release:       1mamba
+Summary:       mathplotlib library - composable cycles
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
@@ -25,26 +26,31 @@ BuildRequires: python3-devel >= 3.11.5-3mamba
 %setup -q -n cycler-%{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
+#%if "%{?with_pyver}" != "3"
+## Rename any conflicting file outside of python site packages tree
+#for f in %{_bindir}/pdm; do
+#   mv %{buildroot}${f}{,-%{?pyappend}}
+#done
+#%endif
 
-%files %{?pyappend} -f %{name}.filelist
+%files %{?pyappend}
 %defattr(-,root,root)
-%dir %{python_sitearch}/cycler-%{version}-py*.egg-info
-%{python_sitearch}/cycler-%{version}-py*.egg-info/*
+%dir %{python_sitelib}/%{pkgname}-%{version}.dist-info
+%{python_sitelib}/%{pkgname}-%{version}.dist-info/*
+%dir %{python_sitelib}/%{pkgname}
+%{python_sitelib}/%{pkgname}/*
 %doc LICENSE
 
 %changelog
+* Fri Dec 01 2023 Automatic Build System <autodist@mambasoft.it> 0.12.1-1mamba
+- automatic version update by autodist
+
 * Tue Sep 26 2023 Automatic Build System <autodist@mambasoft.it> 0.11.0-3mamba
 - rebuilt by autoport with build requirements: python3-devel>=3.11.5-3mamba