diff --git a/.gitignore b/.gitignore
index 9f69678..18efdd7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,7 @@
 SOURCES/Python-2.7.8.tgz
 SOURCES/devtoolset-2-binutils-2.23.52.0.1-10.el5.src.rpm
 SOURCES/gcc48-4.8.2-16.el5.src.rpm
-SOURCES/l10n-lightning-52.8.0.tar.xz
-SOURCES/thunderbird-52.8.0.source.tar.xz
-SOURCES/thunderbird-langpacks-52.8.0-20180517.tar.xz
+SOURCES/l10n-lightning-52.9.1.tar.xz
+SOURCES/thunderbird-52.9.1.source.tar.xz
+SOURCES/thunderbird-langpacks-52.9.1-20180710.tar.xz
 SOURCES/yasm-1.2.0-3.el5.src.rpm
diff --git a/.thunderbird.metadata b/.thunderbird.metadata
index a9f4716..3032f1c 100644
--- a/.thunderbird.metadata
+++ b/.thunderbird.metadata
@@ -1,7 +1,7 @@
 511960dd78451a06c9df76509635aeec05b2051a SOURCES/Python-2.7.8.tgz
 467bdb846d67c01aed9e521fe0ef280065a50c3c SOURCES/devtoolset-2-binutils-2.23.52.0.1-10.el5.src.rpm
 e5ba84786af5d0e0e23b1a9112c76821ef23306c SOURCES/gcc48-4.8.2-16.el5.src.rpm
-99b97cff295594011c0886342be4d883cdf1e024 SOURCES/l10n-lightning-52.8.0.tar.xz
-b8aabca309c15ac239a8334df63b330cd6a35c39 SOURCES/thunderbird-52.8.0.source.tar.xz
-14c289fa6582a33720a92a1729f341bee6b069c1 SOURCES/thunderbird-langpacks-52.8.0-20180517.tar.xz
+ed6d0db71651bbeea5b0f1f38f1b9e131c3c2f04 SOURCES/l10n-lightning-52.9.1.tar.xz
+9970d78084fe979f568ea00bf06b8e81a738e630 SOURCES/thunderbird-52.9.1.source.tar.xz
+92d894048ee4f8c9998af04f73e0d2cad27df00a SOURCES/thunderbird-langpacks-52.9.1-20180710.tar.xz
 77fd30f7ebc12a629a31c1e252cec06af55a71fe SOURCES/yasm-1.2.0-3.el5.src.rpm
diff --git a/README.debrand b/README.debrand
deleted file mode 100644
index 01c46d2..0000000
--- a/README.debrand
+++ /dev/null
@@ -1,2 +0,0 @@
-Warning: This package was configured for automatic debranding, but the changes
-failed to apply.
diff --git a/SPECS/thunderbird.spec b/SPECS/thunderbird.spec
index c31db8e..a092183 100644
--- a/SPECS/thunderbird.spec
+++ b/SPECS/thunderbird.spec
@@ -74,19 +74,19 @@
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        52.8.0
+Version:        52.9.1
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
 
-%define         tarballdir              thunderbird-52.8.0
+%define         tarballdir              thunderbird-52.9.1
 %define         objdir                  objdir
 
 # From ftp://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?ext_version}/source
 Source0:        https://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20180517.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20180710.tar.xz
 %endif
 # Locales for lightning
 Source2:        l10n-lightning-%{version}.tar.xz
@@ -858,10 +858,10 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
-* Thu May 24 2018 CentOS Sources <bugs@centos.org> - 52.8.0-1.el7.centos
-- Apply debranding changes
+* Tue Jul 10 2018 Jan Horak <jhorak@redhat.com> - 52.9.1-1
+- Update to 52.9.1
 
-* Thu May 17 2018 Jan Horak <jhorak@redhat.com> - 52.8.0-1
+* Thu May 17 2018 Jan Horak <jhorak@redhat.com> - 52.8.0-2
 - Update to 52.8.0
 
 * Mon Mar 26 2018 Jan Horak <jhorak@redhat.com> - 52.7.0-1