diff --git a/translate-toolkit.spec b/translate-toolkit.spec
index cfc2125..21b5740 100644
--- a/translate-toolkit.spec
+++ b/translate-toolkit.spec
@@ -1,5 +1,5 @@
 Name:          translate-toolkit
-Version:       3.2.0
+Version:       3.3.6
 Release:       1mamba
 Summary:       Tools for localization
 Group:         Applications/Development
@@ -10,9 +10,10 @@ URL:           http://sourceforge.net/projects/translate/
 Source:        https://github.com/translate/translate.git/%{version}/translate-%{version}.tar.bz2
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: libpython-devel
+BuildRequires: libpython3-devel
+BuildRequires: python3.7dist(lxml)
+BuildRequires: python3.7dist(setuptools)
 ## AUTOBUILDREQ-END
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Tools for localization: Pootle: web based translation management system. Virtaal: Computer Aided Translation (CAT) tool, Translate Toolkit: QA, format conversion and support (PO, Java .properties, OpenOffice, Mozilla, XLIFF, TMX, TBX, CSV, Qt .ts).
@@ -21,14 +22,14 @@ Tools for localization: Pootle: web based translation management system. Virtaal
 %setup -q -n translate-%{version}
 
 %build
-CFLAGS="%{optflags}" %{__python} setup.py build
+CFLAGS="%{optflags}" %{__python3} setup.py build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%{__python} setup.py install \
+%{__python3} setup.py install \
    --root="%{buildroot}" \
-   --install-headers=%{_includedir}/python \
-   --install-lib=%{python_sitearch}
+   --install-headers=%{python3_inc} \
+   --install-lib=%{python3_sitearch}
 
 # FIXME: strange files installed with ugly workaround
 rm -rf %{buildroot}$HOME
@@ -39,12 +40,12 @@ rm -rf %{buildroot}$HOME
 %files
 %defattr(-,root,root)
 %{_bindir}/*
-%dir %{python_sitearch}/translate
-%{python_sitearch}/translate/*
-%{python_sitearch}/translate_toolkit-*-py*.egg-info
-%ifarch x86_64
-%dir %{python_sitelib}/translate
-%{python_sitelib}/translate/*
+%dir %{python3_sitearch}/translate
+%{python3_sitearch}/translate/*
+%{python3_sitearch}/translate_toolkit-*-py*.egg-info
+%ifarch x86_64 aarch64
+%dir %{python3_sitelib}/translate
+%{python3_sitelib}/translate/*
 %endif
 #%{python_sitearch}/docs/*
 #%{python_sitearch}/share/*
@@ -52,6 +53,9 @@ rm -rf %{buildroot}$HOME
 #README
 
 %changelog
+* Sun Jun 13 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 3.3.6-1mamba
+- update to 3.3.6
+
 * Mon Nov 09 2020 Automatic Build System <autodist@mambasoft.it> 3.2.0-1mamba
 - automatic version update by autodist