diff --git a/python-sip.spec b/python-sip.spec
index 1b247f6..3cda2cd 100644
--- a/python-sip.spec
+++ b/python-sip.spec
@@ -1,5 +1,5 @@
 Name:          python-sip
-Version:       4.19.13
+Version:       4.19.18
 Release:       2mamba
 Summary:       Python extension module generator for C and C++ libraries
 Group:         System/Libraries/Python
@@ -7,7 +7,8 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://www.riverbankcomputing.com/software/sip
-Source:        http://sourceforge.net/projects/pyqt/files/sip/sip-%{version}/sip-%{version}.tar.gz
+Source:        https://www.riverbankcomputing.com/static/Downloads/sip/%{version}/sip-%{version}.tar.gz
+#Source:        http://sourceforge.net/projects/pyqt/files/sip/sip-%{version}/sip-%{version}.tar.gz
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -15,6 +16,7 @@ BuildRequires: libgcc
 BuildRequires: libpython-devel
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libpython3-devel >= 3.7.4
 Requires:      python27 >= %python27_version
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
@@ -104,6 +106,12 @@ cd PyQt5
 %doc doc/*
 
 %changelog
+* Thu Aug 08 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 4.19.18-2mamba
+- rebuilt with python3 3.7.4
+
+* Fri Aug 02 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 4.19.18-1mamba
+- update to 4.19.18
+
 * Sun Jan 06 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 4.19.13-2mamba
 - restore build of PtQt4 module