diff --git a/xcb-proto.spec b/xcb-proto.spec
index 438b7ca..6756168 100644
--- a/xcb-proto.spec
+++ b/xcb-proto.spec
@@ -1,6 +1,6 @@
 Name:          xcb-proto
 Version:       1.14
-Release:       1mamba
+Release:       2mamba
 Summary:       Prototypes for the X protocol C-language Binding (XCB) is a replacement for Xlib
 Group:         System/X11
 Vendor:        openmamba
@@ -11,6 +11,7 @@ Source:        http://xcb.freedesktop.org/dist/xcb-proto-%{version}.tar.xz
 License:       MIT
 ## AUTOBUILDREQ-BEGIN
 ## AUTOBUILDREQ-END
+BuildRequires: python3
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -27,7 +28,9 @@ This package contains prototypes for the X protocol C-language Binding. XCB is a
 %setup -q -n xcb-proto-%{version}
 
 %build
-%configure
+%configure \
+   PYTHON=%{__python3}
+
 %make
 
 %install
@@ -43,11 +46,14 @@ This package contains prototypes for the X protocol C-language Binding. XCB is a
 %dir %{_datadir}/xcb
 %{_datadir}/xcb/*.xsd
 %{_datadir}/xcb/*.xml
-%{python_sitelib}/xcbgen/*
+%{python3_sitelib}/xcbgen/*
 %{_libdir}/pkgconfig/*.pc
 %doc COPYING NEWS TODO
 
 %changelog
+* Fri Nov 27 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.14-2mamba
+- rebuilt with python3
+
 * Fri Apr 10 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.14-1mamba
 - update to 1.14