diff --git a/pitivi.spec b/pitivi.spec
index 527d784..91ffe9e 100644
--- a/pitivi.spec
+++ b/pitivi.spec
@@ -1,18 +1,22 @@
+%define        MAJver      %(echo %version | cut -d. -f 1)
 %define        majver      %(echo %version | cut -d. -f 1-2)
 Name:          pitivi
-Version:       2020.09.2
+Version:       2021.05
 Release:       1mamba
 Summary:       A non-linear audio/video editor based on GStreamer
 Group:         Graphical Desktop/Applications/Multimedia
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.pitivi.org
-Source:        http://ftp.gnome.org/pub/GNOME/sources/pitivi/%{majver}/pitivi-%{version}.tar.xz
+URL:           https://www.pitivi.org/
+Source:        https://download.gnome.org/sources/pitivi/%{MAJver}/pitivi-%{version}.tar.xz
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libcairo-devel
+BuildRequires: libglib-devel
+BuildRequires: libgstreamer-devel
+BuildRequires: libpython3-devel
 ## AUTOBUILDREQ-END
 BuildRequires: python-gst
 BuildRequires: desktop-file-utils
@@ -33,7 +37,6 @@ Requires:      python-gst
 #Requires:      python-goocanvas
 #Requires:      python-setuptools
 #Requires:      python-zopeinterface
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 PiTiVi allows users to easily edit audio/video projects based on the GStreamer framework:
@@ -96,6 +99,9 @@ export DESTDIR=%{buildroot}
 #ChangeLog NEWS
 
 %changelog
+* Sun Dec 26 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 2021.05-1mamba
+- update to 2021.05
+
 * Mon Nov 30 2020 Automatic Build System <autodist@mambasoft.it> 2020.09.2-1mamba
 - automatic version update by autodist