diff --git a/.gitignore b/.gitignore
index e35827a..3a65830 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,5 @@
 SOURCES/cbindgen-vendor.tar.xz
 SOURCES/nspr-4.32.0-1.el8_1.src.rpm
 SOURCES/nss-3.67.0-7.el8_1.src.rpm
-SOURCES/thunderbird-91.5.0.processed-source.tar.xz
-SOURCES/thunderbird-langpacks-91.5.0-20220107.tar.xz
+SOURCES/thunderbird-91.6.0.processed-source.tar.xz
+SOURCES/thunderbird-langpacks-91.6.0-20220207.tar.xz
diff --git a/.thunderbird.metadata b/.thunderbird.metadata
index df739f9..6f336fa 100644
--- a/.thunderbird.metadata
+++ b/.thunderbird.metadata
@@ -1,5 +1,5 @@
 c822547dbc12e2baebdfdfb38b665e23f0c2513a SOURCES/cbindgen-vendor.tar.xz
 b5fd1332d8e0d37339ae170c7bebcb63a40b22e0 SOURCES/nspr-4.32.0-1.el8_1.src.rpm
 8fff814901e03c2518ede2f8992d898f5ba61ed9 SOURCES/nss-3.67.0-7.el8_1.src.rpm
-96483930beccc90117f19d77eb57f982aad086ea SOURCES/thunderbird-91.5.0.processed-source.tar.xz
-db0eadc8a9ece29e56420ad74faf0df3545acbe8 SOURCES/thunderbird-langpacks-91.5.0-20220107.tar.xz
+5f4f619a433c7abc51733215a128dbc7ddb5be0c SOURCES/thunderbird-91.6.0.processed-source.tar.xz
+fe71530869aeb1b6039e0ae4dfc13498c2035560 SOURCES/thunderbird-langpacks-91.6.0-20220207.tar.xz
diff --git a/SPECS/thunderbird.spec b/SPECS/thunderbird.spec
index ad3bb42..f6f5ca2 100644
--- a/SPECS/thunderbird.spec
+++ b/SPECS/thunderbird.spec
@@ -128,7 +128,7 @@ end}
 %global build_langpacks         1
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        91.5.0
+Version:        91.6.0
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -155,7 +155,7 @@ ExcludeArch:    aarch64 s390 ppc
 # Link to official tarball: https://archive.mozilla.org/pub/thunderbird/releases/%%{version}%%{?pre_version}/source/thunderbird-%%{version}%%{?pre_version}.source.tar.xz
 Source0:        thunderbird-%{version}%{?pre_version}.processed-source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20220107.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20220207.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        get-calendar-langpacks.sh
@@ -1023,47 +1023,10 @@ rm -rf %{_prefix}/lib/debug/lib64/%{name}-devel-*
 #
 # See http://www.freedesktop.org/software/appstream/docs/ for more details.
 #
-%{__mkdir_p} %{buildroot}%{_datadir}/appdata
-cat > %{buildroot}%{_datadir}/appdata/%{name}.appdata.xml <<EOF
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- Copyright 2014 Richard Hughes <richard@hughsie.com> -->
-<!--
-BugReportURL: https://bugzilla.mozilla.org/show_bug.cgi?id=1071065
-SentUpstream: 2014-09-22
--->
-<application>
-  <id type="desktop">mozilla-thunderbird.desktop</id>
-  <metadata_license>CC0-1.0</metadata_license>
-  <project_license>MPLv1.1 or GPLv2+ or LGPLv2+</project_license>
-  <description>
-    <p>
-      Thunderbird is an email client that allows you to read, write and organise all
-      of your email messages. It is compatible with most email accounts, including the
-      most popular webmail services.
-    </p>
-    <p>
-      Thunderbird is designed by Mozilla, a global community working together to make
-      the Internet better. Mozilla believe that the Internet should be open, public,
-      and accessible to everyone without any restrictions.
-    </p>
-    <ul>
-      <li>Easier than ever to set up a new e-mail account</li>
-      <li>Awesome search allows you to find your messages fast</li>
-      <li>Thousands of add-ons give you the freedom to make Thunderbird your own</li>
-    </ul>
-  </description>
-  <url type="homepage">http://www.mozilla.org/thunderbird/</url>
-  <screenshots>
-    <screenshot type="default">https://raw.githubusercontent.com/hughsie/fedora-appstream/master/screenshots-extra/mozilla-thunderbird/a.png</screenshot>
-  </screenshots>
-  <releases>
-    <release version="%{version}" date="$(date '+%F')"/>
-  </releases>
-  <!-- FIXME: change this to an upstream email address for spec updates
-  <updatecontact>someone_who_cares@upstream_project.org</updatecontact>
-   -->
-</application>
-EOF
+
+# Register as an application to be visible in the software center
+mkdir -p $RPM_BUILD_ROOT%{_datadir}/appdata
+%{__cp} -p comm/mail/branding/%{name}/net.thunderbird.Thunderbird.appdata.xml $RPM_BUILD_ROOT%{_datadir}/appdata/thunderbird.appdata.xml
 
 #---------------------------------------------------------------------
 
@@ -1155,6 +1118,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Mon Feb 07 2022 Eike Rathke <erack@redhat.com> - 91.6.0-1
+- Update to 91.6.0 build1
+
 * Fri Jan 07 2022 Eike Rathke <erack@redhat.com> - 91.5.0-1
 - Update to 91.5.0 build1