diff --git a/libxfce4ui.spec b/libxfce4ui.spec
index f045f71..6741a9e 100644
--- a/libxfce4ui.spec
+++ b/libxfce4ui.spec
@@ -1,56 +1,40 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          libxfce4ui
-Version:       4.16.0
+Version:       4.16.1
 Release:       1mamba
 Summary:       Xfce's unified widgets library
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.xfce.org
+URL:           https://www.xfce.org/
 Source:        http://archive.xfce.org/src/xfce/libxfce4ui/%{majver}/libxfce4ui-%{version}.tar.bz2
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: glade3-devel
+BuildRequires: glade-devel
 BuildRequires: glibc-devel
 BuildRequires: libICE-devel
 BuildRequires: libSM-devel
 BuildRequires: libX11-devel
-BuildRequires: libXau-devel
-BuildRequires: libXdmcp-devel
 BuildRequires: libatk-devel
-BuildRequires: libbsd-devel
-BuildRequires: libbzip2-devel
 BuildRequires: libcairo-devel
-BuildRequires: libdbus-devel
-BuildRequires: libdbus-glib-devel
-BuildRequires: libexpat-devel
-BuildRequires: libffi-devel
-BuildRequires: libfontconfig-devel
-BuildRequires: libfreetype-devel
+BuildRequires: libepoxy-devel
 BuildRequires: libgdk-pixbuf-devel
 BuildRequires: libglib-devel
-BuildRequires: libgraphite2-devel
-BuildRequires: libgtk-devel
-BuildRequires: libgtk2-devel
+BuildRequires: libgtk3-devel
+BuildRequires: libgtop-devel
+BuildRequires: libgudev-devel
 BuildRequires: libharfbuzz-devel
-BuildRequires: liblzma-devel
 BuildRequires: libpango-devel
-BuildRequires: libpng-devel
-BuildRequires: libselinux-devel
 BuildRequires: libstartup-notification-devel
-BuildRequires: libuuid-devel
-BuildRequires: libxcb-devel
 BuildRequires: libxfce4util-devel
+BuildRequires: libxfconf-devel
 BuildRequires: libxml2-devel
-BuildRequires: libz-devel
-BuildRequires: xfconf-devel
 ## AUTOBUILDREQ-END
 Provides:      libxfce4mcs
 Obsoletes:     libxfce4mcs
 Provides:      libxfcegui4
 Obsoletes:     libxfcequi4
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Xfce's unified widgets library.
@@ -139,6 +123,9 @@ This package includes the %{name} API documentation.
 %{_datadir}/gtk-doc/html/%{name}
 
 %changelog
+* Mon Sep 06 2021 Automatic Build System <autodist@mambasoft.it> 4.16.1-1mamba
+- automatic version update by autodist
+
 * Fri Jan 15 2021 Automatic Build System <autodist@mambasoft.it> 4.16.0-1mamba
 - automatic version update by autodist