diff --git a/.gitignore b/.gitignore
index bdce92b..58f8ab4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /qtimageformats-everywhere-src-6.1.0.tar.xz
 /qtimageformats-everywhere-src-6.1.1.tar.xz
 /qtimageformats-everywhere-src-6.1.2.tar.xz
+/qtimageformats-everywhere-src-6.2.0-beta4.tar.xz
diff --git a/qt6-qtimageformats.spec b/qt6-qtimageformats.spec
index 3d63f8c..d40a4e3 100644
--- a/qt6-qtimageformats.spec
+++ b/qt6-qtimageformats.spec
@@ -1,15 +1,30 @@
+# FIXME: qt6-qtdeclarative doesn't build on S390x
+# BUG: https://bugreports.qt.io/browse/QTBUG-93101
+ExcludeArch: s390x
+
 %global qt_module qtimageformats
 
+%global unstable 1
+%if 0%{unstable}
+%global prerelease beta4
+%endif
+
 Summary: Qt6 - QtImageFormats component
 Name:    qt6-%{qt_module}
-Version: 6.1.2
+Version: 6.2.0%{?unstable:~%{prerelease}}
 Release: 1%{?dist}
 
 # See LGPL_EXCEPTIONS.txt, LICENSE.GPL3, respectively, for details
 License: LGPLv2 with exceptions or GPLv3 with exceptions
 Url:     http://www.qt.io
 %global majmin %(echo %{version} | cut -d. -f1-2)
-Source0: https://download.qt.io/official_releases/additional_libraries/%{qt_module}/%{majmin}/%{version}/%{qt_module}-everywhere-src-%{version}.tar.xz
+%global  qt_version %(echo %{version} | cut -d~ -f1)
+
+%if 0%{unstable}
+Source0: https://download.qt.io/development_releases/qt/%{majmin}/%{qt_version}/submodules/%{qt_module}-everywhere-src-%{qt_version}-%{prerelease}.tar.xz
+%else
+Source0: https://download.qt.io/official_releases/qt/%{majmin}/%{version}/submodules/%{qt_module}-everywhere-src-%{version}.tar.xz
+%endif
 
 BuildRequires: cmake
 BuildRequires: gcc-c++
@@ -40,7 +55,7 @@ Requires: %{name}%{?_isa} = %{version}-%{release}
 
 
 %prep
-%autosetup -n %{qt_module}-everywhere-src-%{version} -p1
+%autosetup -n %{qt_module}-everywhere-src-%{qt_version}%{?unstable:-%{prerelease}} -p1
 
 rm -rv src/3rdparty
 
@@ -70,6 +85,9 @@ rm -rv src/3rdparty
 
 
 %changelog
+* Mon Sep 13 2021 Jan Grulich <jgrulich@redhat.com> - 6.2.0~beta4-1
+- 6.2.0 - beta4
+
 * Thu Aug 12 2021 Jan Grulich <jgrulich@redhat.com> - 6.1.2-1
 - 6.1.2
 
diff --git a/sources b/sources
index a6e35ba..8454762 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (qtimageformats-everywhere-src-6.1.2.tar.xz) = 53a698de0b7518346649e47604d43e6d0dc5e3ab219ce32802748e028820140b6f881a3f74b26d6f9f5b79417c0c09eefd0de7baed3c8bd9d69cfac51dfa10ff
+SHA512 (qtimageformats-everywhere-src-6.2.0-beta4.tar.xz) = adf746259920267bc37c2aa9c997f51bd251c480b3287e75ccbb34095a31773174bcc14f30844847f2e2465fd3f2ac61b262453bafc821276f992c12d4e7002d