diff --git a/python-cffi.spec b/python-cffi.spec
index c52192b..2fdb1b6 100644
--- a/python-cffi.spec
+++ b/python-cffi.spec
@@ -1,6 +1,6 @@
 Name:          python-cffi
 Version:       1.12.3
-Release:       1mamba
+Release:       2mamba
 Summary:       Foreign Function Interface for Python calling C code
 Group:         System/Libraries
 Vendor:        openmamba
@@ -12,6 +12,7 @@ License:       MIT
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: libpython-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libpython3-devel >= 3.7.4
 Requires:      python >= %python_version
 Requires:      python-pycparser
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
@@ -46,6 +47,9 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %{python_sitearch}/cffi-%{version}-py*.egg-info/*
 
 %changelog
+* Thu Aug 08 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 1.12.3-2mamba
+- rebuilt with python3 3.7.4
+
 * Sun Apr 21 2019 Automatic Build System <autodist@mambasoft.it> 1.12.3-1mamba
 - automatic version update by autodist