diff --git a/ufw.spec b/ufw.spec
index 8604c9d..866602d 100644
--- a/ufw.spec
+++ b/ufw.spec
@@ -2,7 +2,7 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          ufw
 Version:       0.36
-Release:       1mamba
+Release:       2mamba
 Summary:       ufw is Uncomplicated Firewall a cli front end to iptables
 Group:         System/Libraries/Python
 Vendor:        openmamba
@@ -17,12 +17,12 @@ Patch2:        %{name}-0.30.1-load_netbios_ipt_module.patch
 Patch3:        ufw-0.35-disable_logging_by_default.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: libpython-devel
+BuildRequires: libpython3-devel
 ## AUTOBUILDREQ-END
 BuildRequires: iptables
 BuildRequires: iptables-ipv6
 %systemd_requires
-Requires:      python >= %python_version
+Requires:      python3 >= %python3_version
 Requires:      iptables
 Requires:      iptables-ipv6
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
@@ -38,12 +38,16 @@ Ufw stands for Uncomplicated Firewall, and is program for managing a netfilter f
 %patch3 -p1
 
 %build
-%{__python} setup.py build
+%{__python3} setup.py build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%{__python} setup.py install \
-   --root="%{buildroot}"
+%{__python3} setup.py install \
+   -O1 --skip-build \
+   --root="%{buildroot}" \
+   --install-headers=%{python3_inc} \
+   --install-lib=%{python3_sitearch} \
+   --record=%{name}.filelist
 
 install -D -m0644 %{SOURCE1} %{buildroot}%{_unitdir}/ufw.service
 
@@ -76,7 +80,7 @@ fi
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%files
+%files -f %{name}.filelist
 %defattr(-,root,root)
 %config(noreplace) %{_sysconfdir}/default/ufw
 %dir %{_sysconfdir}/ufw
@@ -95,13 +99,14 @@ fi
 %dir %{_datadir}/ufw
 %dir %{_datadir}/ufw/iptables
 %{_datadir}/ufw/iptables/*.rules
-%{python_sitelib}/ufw-%{version}-py*.egg-info
-%{python_sitelib}/ufw/*.py
-%{python_sitelib}/ufw/*.pyc
-%{_mandir}/man8/*.8.gz
+%{_mandir}/man8/ufw-framework.8*
+%{_mandir}/man8/ufw.8*
 %{_datadir}/ufw/messages/*.mo
 
 %changelog
+* Thu Sep 10 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.36-2mamba
+- rebuilt with python3
+
 * Tue Dec 25 2018 Automatic Build System <autodist@mambasoft.it> 0.36-1mamba
 - automatic version update by autodist