diff --git a/metacity.spec b/metacity.spec
index 3e5c2e0..bedff14 100644
--- a/metacity.spec
+++ b/metacity.spec
@@ -1,15 +1,14 @@
 %define        majver      %(echo %{version} | cut -d. -f 1-2)
 Name:          metacity
-Version:       3.36.1
+Version:       3.40.0
 Release:       1mamba
 Summary:       A minimal X window manager aimed at nontechnical users used by Gnome
 Group:         Graphical Desktop/Libraries/GNOME
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.gnome.org
+URL:           https://www.gnome.org/
 Source0:       http://ftp.acc.umu.se/pub/GNOME/sources/metacity/%{majver}/metacity-%{version}.tar.xz
-#ftp://ftp.gnome.org/pub/GNOME/sources/metacity/%{metacity_majver}/metacity-%{version}.tar.bz2
 Source1:       %{name}.png
 Patch:         %{name}-2.22.0-desktop.patch
 License:       GPL
@@ -26,19 +25,23 @@ BuildRequires: libXfixes-devel
 BuildRequires: libXinerama-devel
 BuildRequires: libXrandr-devel
 BuildRequires: libXrender-devel
+BuildRequires: libXres-devel
 BuildRequires: libatk-devel
 BuildRequires: libcairo-devel
 BuildRequires: libcanberra-devel
 BuildRequires: libgdk-pixbuf-devel
 BuildRequires: libglib-devel
-BuildRequires: libgtk-devel
+BuildRequires: libgtk3-devel
 BuildRequires: libgtop-devel
+BuildRequires: libharfbuzz-devel
 BuildRequires: libpango-devel
 BuildRequires: libstartup-notification-devel
+BuildRequires: libvulkan-devel
+BuildRequires: libxpresent-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libxpresent-devel
 BuildRequires: zenity
 BuildRequires: itstool
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 A minimal X window manager aimed at nontechnical users used by Gnome.
@@ -50,7 +53,9 @@ Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description devel
 A minimal X window manager aimed at nontechnical users used by Gnome.
-This package contains static libraries and header files need for development.
+This package contains static libraries and header files needed for development.
+
+%debug_package
 
 %prep
 %setup -q
@@ -78,29 +83,30 @@ install -m 644 %{S:1} %{buildroot}%{_datadir}/pixmaps/%{name}.png
 %{_bindir}/metacity
 %{_bindir}/metacity-message
 %{_bindir}/metacity-theme-viewer
-%{_bindir}/metacity-window-demo
+#%{_bindir}/metacity-window-demo
 %{_libdir}/libmetacity.so.*
 %{_datadir}/applications/metacity.desktop
-%{_datadir}/glib-2.0/schemas/org.gnome.metacity.*.gschema.xml
-%{_datadir}/glib-2.0/schemas/org.gnome.metacity.gschema.xml
+%{_datadir}/glib-2.0/schemas/org.gnome.metacity.*.xml
 %{_datadir}/gnome-control-center/keybindings/50-metacity-*.xml
-%{_datadir}/metacity/icons/metacity-window-demo.png
+#%{_datadir}/metacity/icons/metacity-window-demo.png
 %{_datadir}/pixmaps/%{name}.png
 %{_mandir}/man1/metacity*.1*
 %doc AUTHORS COPYING
 
 %files devel
 %defattr(-,root,root)
-%{_libdir}/libmetacity.a
 %{_libdir}/libmetacity.la
 %{_libdir}/libmetacity.so
 %dir %{_includedir}/metacity
 %dir %{_includedir}/metacity/libmetacity
 %{_includedir}/metacity/libmetacity/*.h
 %{_libdir}/pkgconfig/*.pc
-%doc ChangeLog NEWS README
+#%doc ChangeLog NEWS README
 
 %changelog
+* Thu Jul 29 2021 Automatic Build System <autodist@mambasoft.it> 3.40.0-1mamba
+- automatic version update by autodist
+
 * Fri Mar 27 2020 Automatic Build System <autodist@mambasoft.it> 3.36.1-1mamba
 - automatic version update by autodist