diff --git a/python-lxml.spec b/python-lxml.spec
index 15ab12f..2150e3b 100644
--- a/python-lxml.spec
+++ b/python-lxml.spec
@@ -1,11 +1,11 @@
 Name:          python-lxml
-Version:       4.2.6
+Version:       4.4.0
 Release:       1mamba
 Summary:       Python binding for the libxml2 and libxslt libraries
 Group:         System/Libraries/Python
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      Automatic Build System <autodist@mambasoft.it>
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://codespeak.net/lxml/
 Source:        http://pypi.debian.net/lxml/lxml-%{version}.tar.gz
 License:       BSD, MIT
@@ -16,6 +16,7 @@ BuildRequires: libxml2-devel
 BuildRequires: libxslt-devel
 BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libpython3-devel >= 3.7.4
 Requires:      python >= %python_version
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
@@ -71,6 +72,9 @@ rm -f doc/html/pubkey.asc
 %doc CHANGES.txt TODO.txt
 
 %changelog
+* Thu Aug 08 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 4.4.0-1mamba
+- update to 4.4.0
+
 * Fri Jan 04 2019 Automatic Build System <autodist@mambasoft.it> 4.2.6-1mamba
 - automatic version update by autodist