diff --git a/goffice.spec b/goffice.spec
index 79da974..cc94352 100644
--- a/goffice.spec
+++ b/goffice.spec
@@ -1,15 +1,15 @@
 %define majver %(echo %version | cut -d. -f 1-2)
 %define apiver 0.10
 Name:          goffice
-Version:       0.10.48
+Version:       0.10.50
 Release:       1mamba
 Summary:       A library of document centric objects and utilities building on top of GLib and Gtk+
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.gnome.org
-Source:        ftp://ftp.gnome.org/pub/GNOME/sources/goffice/%{majver}/goffice-%{version}.tar.xz
+URL:           https://www.gnome.org
+Source:        https://download.gnome.org/sources/goffice/%{majver}/goffice-%{version}.tar.xz
 Patch0:        %{name}-0.8.17-pcre-8.30.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
@@ -19,14 +19,17 @@ BuildRequires: libcairo-devel
 BuildRequires: libgdk-pixbuf-devel
 BuildRequires: libglib-devel
 BuildRequires: libgsf-devel
-BuildRequires: libgtk-devel
+BuildRequires: libgtk3-devel
+BuildRequires: libharfbuzz-devel
+BuildRequires: liblzma-devel
 BuildRequires: libpango-devel
 BuildRequires: librsvg-devel
 BuildRequires: libspectre-devel
 BuildRequires: libxml2-devel
+BuildRequires: libxslt-devel
+BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libpcre-devel >= 8.30
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 A library of document centric objects and utilities building on top of GLib and Gtk+.
@@ -45,7 +48,9 @@ Requires:      libgoffice = %{?epoch:%epoch:}%{version}-%{release}
 
 %description -n libgoffice-devel
 A library of document centric objects and utilities building on top of GLib and Gtk+.
-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
@@ -90,6 +95,9 @@ This package contains static libraries and header files need for development.
 %doc BUGS ChangeLog NEWS README
 
 %changelog
+* Thu Dec 23 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 0.10.50-1mamba
+- update to 0.10.50
+
 * Sat Sep 05 2020 Automatic Build System <autodist@mambasoft.it> 0.10.48-1mamba
 - automatic version update by autodist