diff --git a/python-pyproject_hooks.spec b/python-pyproject_hooks.spec
index 7e5d4d3..ffce5df 100644
--- a/python-pyproject_hooks.spec
+++ b/python-pyproject_hooks.spec
@@ -1,19 +1,19 @@
 %define pkgname %(echo %name | cut -d- -f2- | tr - _)
 Name:          python-pyproject_hooks
 Version:       1.0.0
-Release:       1mamba
+Release:       2mamba
 Summary:       Wrappers to call pyproject.toml-based build backend hooks
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           https://pyproject-hooks.readthedocs.io/
+URL:           https://pyproject-hooks.readthedocs.io/en/latest/
 Source:        https://pypi.debian.net/pyproject_hooks/pyproject_hooks-%{version}.tar.gz
 License:       MIT
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: libpython3-devel
-BuildRequires: python3.7dist(tomli)
+BuildRequires: libpython311-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libpython3-devel >= 3.11
 
 %description
 %{summary}.
@@ -26,11 +26,26 @@ BuildRequires: python3.7dist(tomli)
 %setup -q -n pyproject_hooks-%{version}
 
 %build
+%if "0%{?with_pyver}" == "03"
+# Bootstrap
+virtualenv-py310 -p %{__python3} env
+source env/bin/activate
+pip install build installer flit_core
+CFLAGS="%{optflags}" python -m build --no-isolation --wheel
+%else
 CFLAGS="%{optflags}" %{__python} -m build --no-isolation --wheel
+%endif
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%if "0%{?with_pyver}" == "03"
+# Bootstrap
+. ./env/bin/activate
+python -m installer --destdir=%{buildroot} --prefix=%{_prefix} dist/*.whl
+%else
 %{__python} -m installer --destdir=%{buildroot} dist/*.whl
+%endif
 
 #%if "%{?with_pyver}" != "3"
 ## Rename any conflicting file outside of python site packages tree
@@ -48,5 +63,8 @@ CFLAGS="%{optflags}" %{__python} -m build --no-isolation --wheel
 %doc LICENSE
 
 %changelog
+* Sat Sep 23 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 1.0.0-2mamba
+- rebuilt with python 3.11 as py3 (bootstrap mode via pip)
+
 * Mon Mar 06 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 1.0.0-1mamba
 - package created using the webbuild interface