diff --git a/python-reportlab.spec b/python-reportlab.spec
index c47b893..ae8f2a2 100644
--- a/python-reportlab.spec
+++ b/python-reportlab.spec
@@ -1,6 +1,6 @@
 Name:          python-reportlab
 Version:       3.5.23
-Release:       1mamba
+Release:       2mamba
 Summary:       An Open Source Python library for generating PDFs and graphics
 Group:         System/Libraries/Python
 Vendor:        openmamba
@@ -16,6 +16,7 @@ BuildRequires: libart_lgpl-devel
 BuildRequires: libfreetype-devel
 BuildRequires: libpython-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libpython3-devel >= 3.7.4
 BuildRequires: python-Imaging
 BuildRequires: python-xml
 Requires:      python >= %python_version
@@ -84,6 +85,9 @@ rm -rf demos/tests
 %endif
 
 %changelog
+* Fri Aug 09 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 3.5.23-2mamba
+- rebuilt with python3 3.7.4
+
 * Sat Jun 22 2019 Automatic Build System <autodist@mambasoft.it> 3.5.23-1mamba
 - automatic version update by autodist