diff --git a/python-imagesize.spec b/python-imagesize.spec
index 90a9324..5eed570 100644
--- a/python-imagesize.spec
+++ b/python-imagesize.spec
@@ -1,6 +1,6 @@
 Name:          python-imagesize
 Version:       1.1.0
-Release:       1mamba
+Release:       2mamba
 Summary:       This module analyzes jpeg/jpeg2000/png/gif image header and return image size
 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
 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> 1.1.0-2mamba
+- rebuilt with python3 3.7.4
+
 * Fri Sep 07 2018 Automatic Build System <autodist@mambasoft.it> 1.1.0-1mamba
 - automatic version update by autodist