diff --git a/.gitignore b/.gitignore
index 3fdbf9f..73e5157 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,5 @@
 /thunderbird-langpacks-91.11.0-20220628.tar.xz
 /thunderbird-91.12.0.processed-source.tar.xz
 /thunderbird-langpacks-91.12.0-20220725.tar.xz
+/thunderbird-91.13.0.processed-source.tar.xz
+/thunderbird-langpacks-91.13.0-20220819.tar.xz
diff --git a/sources b/sources
index ba4e0ff..dac0ccc 100644
--- a/sources
+++ b/sources
@@ -1,5 +1,5 @@
 SHA512 (cbindgen-vendor.tar.xz) = 9cb4a590584c53386a14deb1f1faf7b67ff8f312eff4a8dccab710738183c504387d69fa660021b495ed61603f4df1db689f35234c61e2e886962e40aab20c95
 SHA512 (nss-3.67.0-7.el8_1.src.rpm) = 15361c596fc4f2e4afc7d40d48c37886cad93849821d2bcad8213f34035a6951be127b436b6799083f2b4adb18a68870dbe273177d2d670eda9cc9680e6d6f63
 SHA512 (nspr-4.32.0-1.el8_1.src.rpm) = c181a19bc24aeb62aed1745a6a43ae8aa2ee0d903aa16cb6ec7d385286e60f6426049cc9669459434377a215f329502ffe6fc48a1edc52d5b3283ebc259e9dca
-SHA512 (thunderbird-91.12.0.processed-source.tar.xz) = 178798bb014001dc636f678b99e68aacf7200aec8218a19b6cb4e3f960305cb0fecb99eb1322dc164ac9d091df9c678886831a087d53dd8d9d1f12a12e2cd0aa
-SHA512 (thunderbird-langpacks-91.12.0-20220725.tar.xz) = ba2818d79cf70e27efba829243da910324ba1ebfdc07fc22fe348992b090a016dadacc9ab0a4543de1fc3b4881ce083b25d01fa9282d965e5ce7b16c3f4fc1f0
+SHA512 (thunderbird-91.13.0.processed-source.tar.xz) = 56c38404a47572b9070e463d690194615cbf1a70373011f8374305576af6e05768fbae7c41aee10f426f20f295d031c3de7df6de36850b982f7432630f455be0
+SHA512 (thunderbird-langpacks-91.13.0-20220819.tar.xz) = 0d9b0802cb42d9602c300ec97c977ef0611209f3edafdb53442e212936dd3817ada9f53644ed203781e6799943c004cdd91bcb99a77d3c9db20d98d66b7635b3
diff --git a/thunderbird.spec b/thunderbird.spec
index 6b67d2d..ff9f43b 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -134,7 +134,7 @@ end}
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        91.12.0
+Version:        91.13.0
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -157,7 +157,7 @@ ExcludeArch:    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}%{?buildnum}.processed-source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20220725.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20220819.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        get-calendar-langpacks.sh
@@ -1114,6 +1114,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Fri Aug 19 2022 Eike Rathke <erack@redhat.com> - 91.13.0-1
+- Update to 91.13.0 build1
+
 * Mon Jul 25 2022 Eike Rathke <erack@redhat.com> - 91.12.0-1
 - Update to 91.12.0 build1