diff --git a/python-enum34.spec b/python-enum34.spec
index 17bd475..146dfd1 100644
--- a/python-enum34.spec
+++ b/python-enum34.spec
@@ -1,6 +1,6 @@
 Name:          python-enum34
 Version:       1.1.6
-Release:       2mamba
+Release:       3mamba
 Summary:       Python 3.4 Enum backported
 Group:         System/Libraries
 Vendor:        openmamba
@@ -12,6 +12,7 @@ License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: libpython-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libpython3-devel >= 3.7.4
 Requires:      python >= %python_version
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
@@ -43,6 +44,9 @@ CFLAGS="%{optflags}" %{__python} setup.py build
 %defattr(-,root,root)
 
 %changelog
+* Thu Aug 08 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 1.1.6-3mamba
+- rebuilt with python3 3.7.4
+
 * Wed Nov 15 2017 Silvan Calarco <silvan.calarco@mambasoft.it> 1.1.6-2mamba
 - added -py3 build