diff --git a/nautilus-image-converter.spec b/nautilus-image-converter.spec
index a9acb30..fad2397 100644
--- a/nautilus-image-converter.spec
+++ b/nautilus-image-converter.spec
@@ -1,6 +1,6 @@
 %define        majver   	%(echo %version | cut -d. -f 1-2)
 Name:          nautilus-image-converter
-Version:       0.3.0_20130901git
+Version:       0.4.0
 ##0.3.0 0.2.1
 Release:       1mamba
 Summary:       Nautilus extension to mass resize or rotate images.
@@ -8,27 +8,17 @@ Group:         Applications/Graphics
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.bitron.ch/software/nautilus-image-converter.php
-Source:        git://git.gnome.org/nautilus-image-converter.git/master/%{name}-%{version}.tar.bz2
+URL:           https://www.bitron.ch/software/nautilus-image-converter.php
+Source:        https://gitlab.gnome.org/coreyberla/nautilus-image-converter.git/%{version}/%{name}-%{version}.tar.bz2
 #Source:        http://ftp.acc.umu.se/pub/GNOME/sources/%{name}/%{majver}/%{name}-%{version}.tar.bz2
 License:       GPL
-BuildRequires:  ImageMagick-devel
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: GConf-devel
 BuildRequires: glibc-devel
-BuildRequires: libatk-devel
-BuildRequires: libcairo-devel
-BuildRequires: libglade-devel
 BuildRequires: libglib-devel
-BuildRequires: libgnome-vfs-devel
 BuildRequires: libgtk-devel
-BuildRequires: libpango-devel
-BuildRequires: libxml2-devel
-BuildRequires: ORBit2-devel
 BuildRequires: libnautilus-extension-devel
 ## AUTOBUILDREQ-END
-
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+BuildRequires:  ImageMagick-devel
 
 %description
 Nautilus extension to mass resize or rotate images.
@@ -39,18 +29,19 @@ ImageResizer
 This opens a dialog where you set the desired image size and file name. 
 A click on "Resize" finally resizes the image(s) using ImageMagick's convert tool.
 
+%debug_package
+
 %prep
 %setup -q
 
 %build
-./autogen.sh
-export NAUTILUS_LIBS=%{_libdir}
-%configure 
-%make
+%meson
+
+%meson_build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall DESTDIR=%{buildroot}
+%meson_install
 
 %find_lang %{name}
 
@@ -59,15 +50,16 @@ export NAUTILUS_LIBS=%{_libdir}
 
 %files -f %{name}.lang
 %defattr(-,root,root)
-%{_libdir}/nautilus/extensions-?.?/libnautilus-image-converter.la
-%attr(755,root,root) %{_libdir}/nautilus/extensions-?.?/libnautilus-image-converter.so
+%attr(755,root,root) %{_libdir}/nautilus/extensions-*/libnautilus-image-converter.so
 %dir %{_datadir}/nautilus-image-converter
-%{_datadir}/nautilus-image-converter/nautilus-image-resize.ui
-%{_datadir}/nautilus-image-converter/nautilus-image-rotate.ui
+%{_datadir}/nautilus-image-converter/nautilus-image-*.ui
 %doc AUTHORS COPYING
 #ChangeLog NEWS
 
 %changelog
+* Fri Dec 30 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 0.4.0-1mamba
+- update to 0.4.0
+
 * Fri Sep 06 2013 Automatic Build System <autodist@mambasoft.it> 0.3.0_20130901git-1mamba
 - automatic rebuild by autodist