diff --git a/thunderbird.spec b/thunderbird.spec
index 6f3d302..6dcc937 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -90,7 +90,7 @@ ExcludeArch: s390x
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
 Version:        78.12.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Source0:        https://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.source.tar.xz
@@ -767,6 +767,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 78.12.0-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
+
 * Wed Jul 21 2021 Jan Horak <jhorak@redhat.com> - 78.12.0-1
 - Update to 78.12.0 build2