diff --git a/itstool.spec b/itstool.spec
index 63b6bd6..6ef4387 100644
--- a/itstool.spec
+++ b/itstool.spec
@@ -1,6 +1,6 @@
 Name:          itstool
 Version:       2.0.6
-Release:       1mamba
+Release:       3mamba
 Summary:       A tool to translate XML documents with PO files
 Group:         Development/Tools
 Vendor:        openmamba
@@ -12,8 +12,9 @@ Patch0:        itstool-2.0.4-x86-segfault.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 ## AUTOBUILDREQ-END
-Requires:      python-libxml2
-Requires:      python27
+BuildRequires: python-libxml2-py3
+Requires:      python-libxml2-py3
+Requires:      python3
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -23,10 +24,12 @@ ITS Tool allows you to translate your XML documents with PO files, using rules f
 %setup -q
 #%patch0 -p1
 
-sed -i "s|%{_bindir}/python|%{_bindir}/python2.7|" itstool.in
+sed -i "s|%{_bindir}/python|%{__python3}|" itstool.in
 
 %build
-%configure
+%configure \
+   PYTHON=%{__python3}
+
 %make
 
 %install
@@ -46,6 +49,12 @@ sed -i "s|%{_bindir}/python|%{_bindir}/python2.7|" itstool.in
 %doc COPYING
 
 %changelog
+* Sat Nov 28 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.6-3mamba
+- fix rebuilt with python3
+
+* Thu Nov 26 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.6-2mamba
+- rebuilt with python3
+
 * Tue Sep 17 2019 Automatic Build System <autodist@mambasoft.it> 2.0.6-1mamba
 - automatic version update by autodist