diff --git a/.firefox.metadata b/.firefox.metadata
index 8f79761..f33c77b 100644
--- a/.firefox.metadata
+++ b/.firefox.metadata
@@ -1,5 +1,5 @@
 c822547dbc12e2baebdfdfb38b665e23f0c2513a SOURCES/cbindgen-vendor.tar.xz
-39f2ee46c5e34141352021b76f4f41f75d6ad6b7 SOURCES/firefox-91.12.0esr.processed-source.tar.xz
-7f84818bb27b90dce6b858f2acbf64c4e35e29f3 SOURCES/firefox-langpacks-91.12.0esr-20220721.tar.xz
+0693b8482089631c9c1c2b3c521aa701013e8a06 SOURCES/firefox-91.13.0esr.processed-source.tar.xz
+3ad70d1bac601289f0355fed936bfd61e2fbbfd5 SOURCES/firefox-langpacks-91.13.0esr-20220817.tar.xz
 b5fd1332d8e0d37339ae170c7bebcb63a40b22e0 SOURCES/nspr-4.32.0-1.el8_1.src.rpm
 8fff814901e03c2518ede2f8992d898f5ba61ed9 SOURCES/nss-3.67.0-7.el8_1.src.rpm
diff --git a/.gitignore b/.gitignore
index 5e1f63f..aa16c51 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,5 @@
 SOURCES/cbindgen-vendor.tar.xz
-SOURCES/firefox-91.12.0esr.processed-source.tar.xz
-SOURCES/firefox-langpacks-91.12.0esr-20220721.tar.xz
+SOURCES/firefox-91.13.0esr.processed-source.tar.xz
+SOURCES/firefox-langpacks-91.13.0esr-20220817.tar.xz
 SOURCES/nspr-4.32.0-1.el8_1.src.rpm
 SOURCES/nss-3.67.0-7.el8_1.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/firefox.spec b/SPECS/firefox.spec
index a3038c6..9db388f 100644
--- a/SPECS/firefox.spec
+++ b/SPECS/firefox.spec
@@ -135,8 +135,8 @@ end}
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        91.12.0
-Release:        2%{?dist}
+Version:        91.13.0
+Release:        1%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 %if 0%{?rhel} == 9
@@ -160,7 +160,7 @@ ExcludeArch:    aarch64 s390 ppc
 # Link to official tarball: https://hg.mozilla.org/releases/mozilla-release/archive/firefox-%%{version}%%{?pre_version}.source.tar.xz
 Source0:        firefox-%{version}%{?pre_version}%{?buildnum}.processed-source.tar.xz
 %if %{build_langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20220721.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20220817.tar.xz
 
 %endif
 Source2:        cbindgen-vendor.tar.xz
@@ -1271,8 +1271,8 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
-* Tue Aug 02 2022 CentOS Sources <bugs@centos.org> - 91.12.0-2.el8.centos
-- Apply debranding changes
+* Wed Aug 17 2022 Eike Rathke <erack@redhat.com> - 91.13.0-1
+- Update to 91.13.0 build1
 
 * Thu Jul 21 2022 Eike Rathke <erack@redhat.com> - 91.12.0-1
 - Update to 91.12.0 build1