diff --git a/python-dateutil.spec b/python-dateutil.spec
index 0b6f6ac..5d71862 100644
--- a/python-dateutil.spec
+++ b/python-dateutil.spec
@@ -1,6 +1,6 @@
 Name:          python-dateutil
 Version:       2.8.0
-Release:       1mamba
+Release:       2mamba
 Summary:       Extensions to the standard python datetime module
 Group:         System/Libraries/Python
 Vendor:        openmamba
@@ -13,6 +13,7 @@ Requires:      python >= %python_version
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: libpython-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libpython3-devel >= 3.7.4
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -44,6 +45,9 @@ The dateutil module provides powerful extensions to the standard datetime module
 %defattr(-,root,root)
 
 %changelog
+* Thu Aug 08 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 2.8.0-2mamba
+- rebuilt with python3 3.7.4
+
 * Wed Feb 06 2019 Automatic Build System <autodist@mambasoft.it> 2.8.0-1mamba
 - automatic version update by autodist