diff --git a/PyQt4.spec b/PyQt4.spec
index ddcede2..a9e7b60 100644
--- a/PyQt4.spec
+++ b/PyQt4.spec
@@ -1,7 +1,7 @@
 %define        pythonsip_ver  %(sip -V)
 
 Name:          PyQt4
-Version:       4.11.3
+Version:       4.12.3
 Release:       1mamba
 Summary:       Python bindings for the Qt cross platform GUI toolkit
 Group:         System/Libraries
@@ -9,7 +9,7 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://www.riverbankcomputing.com/software/pyqt
-Source:        http://sourceforge.net/projects/pyqt/files/PyQt4/PyQt-%{version}/PyQt-x11-gpl-%{version}.tar.gz
+Source:        https://sourceforge.net/projects/pyqt/files/PyQt4/PyQt-%{version}/PyQt4_gpl_x11-%{version}.tar.gz
 Patch0:        %{name}-egl.patch
 Patch1:        %{name}-4.7.3-qreal_float_support.patch
 Patch2:        PyQt4-4.9.4-x86_64.patch
@@ -33,7 +33,7 @@ BuildRequires: libXcursor-devel
 BuildRequires: python-dbus
 BuildRequires: python-dbus-devel
 # WARNING: do not parametrize python-sip-devel version or it will be useless for ports
-BuildRequires: python-sip-devel >= 4.16.4
+BuildRequires: python-sip-devel >= 4.19.13
 Requires:      python-sip = %{pythonsip_ver}
 Requires:      python-dbus
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
@@ -83,7 +83,7 @@ PyQt4 is a comprehensive set of Python bindings for Nokia's Qt4 cross platform G
 This package contains the QtDesigner support components for PyQt4.
 
 %prep
-%setup -q -n PyQt-x11-gpl-%{version}
+%setup -q -n PyQt4_gpl_x11-%{version}
 #%patch0 -p0
 #% ifarch arm
 #% patch1 -p1
@@ -126,7 +126,10 @@ find examples/ -type f -exec chmod 0644 {} ';'
 
 %files %{?with_pyver:py%{pyver}}
 %defattr(-,root,root)
-%if "%{?pyver}" != "3"
+%if "%{?pyver}" != "36"
+%{python_sitelib}/dbus/mainloop/qt.so
+%endif
+%ifarch arm
 %{python_sitelib}/dbus/mainloop/qt.so
 %endif
 %{python_sitearch}/PyQt4/Qt.so
@@ -153,7 +156,7 @@ find examples/ -type f -exec chmod 0644 {} ';'
 %dir %{python_sitearch}/PyQt4/uic
 %{python_sitearch}/PyQt4/uic/*
 #%{python_sitelib}/dbus/mainloop/qt.so
-%doc GPL_EXCEPTION*.TXT LICENSE*
+%doc LICENSE*
 
 %files devel
 %defattr(-,root,root)
@@ -161,8 +164,8 @@ find examples/ -type f -exec chmod 0644 {} ';'
 %dir %{_datadir}/sip/PyQt4
 %{_datadir}/sip/PyQt4/*
 %{_qt4_datadir}/qsci/api/python/PyQt4.api
-%doc doc/* examples
-%doc NEWS README THANKS
+#%doc doc/* examples
+#%doc NEWS README THANKS
 
 %files %{?with_pyver:py%{pyver}-}QtDesigner
 %defattr(-,root,root)
@@ -170,6 +173,9 @@ find examples/ -type f -exec chmod 0644 {} ';'
 %{_qt4_plugindir}/designer/*
 
 %changelog
+* Fri Dec 28 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 4.12.3-1mamba
+- update to 4.12.3
+
 * Fri Nov 14 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 4.11.3-1mamba
 - update to 4.11.3
 - added -py3 subpackage support