diff --git a/PyQt5.spec b/PyQt5.spec
index 7ffbd72..8aee404 100644
--- a/PyQt5.spec
+++ b/PyQt5.spec
@@ -1,8 +1,9 @@
 %define        pythonsip_ver  %(sip -V)
 
+%define majver %(echo %version | cut -d. -f1-2)
 Name:          PyQt5
-Version:       5.15.2
-Release:       2mamba
+Version:       5.15.4
+Release:       1mamba
 Summary:       Python bindings for the Qt5 cross platform GUI toolkit
 Group:         System/Libraries
 Vendor:        openmamba
@@ -33,12 +34,11 @@ BuildRequires: python-dbus-py3 >= 1.2.16
 BuildRequires: python-sip-py3 >= 5.5.0
 BuildRequires: PyQt5-sip-py3 >= 6.0.1
 BuildRequires: PyQt-builder-py3
-BuildRequires: libqt5-devel >= %{version}
+BuildRequires: libqt5-devel >= %{majver}
 BuildRequires: python-dbus-devel
 %ifnarch arm
-BuildRequires: libQt5WebEngine-devel >= %{version}
+BuildRequires: libQt5WebEngine-devel >= %{majver}
 %endif
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 PyQt5 is a comprehensive set of Python bindings for Nokia's Qt5 cross platform GUI toolkit.
@@ -138,6 +138,12 @@ rm -f %{buildroot}%{_libdir}/qt5/plugins/PyQt5/libpyqt5qmlplugin.so
 %{_qt5_plugindir}/designer/*
 
 %changelog
+* Thu Mar 11 2021 Automatic Build System <autodist@mambasoft.it> 5.15.4-1mamba
+- automatic version update by autodist
+
+* Sun Mar 07 2021 Automatic Build System <autodist@mambasoft.it> 5.15.3-1mamba
+- automatic version update by autodist
+
 * Wed Feb 10 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 5.15.2-2mamba
 - rebuilt with python-sip 6.0.1