diff --git a/.gitignore b/.gitignore
index 3c4375c..6c03401 100644
--- a/.gitignore
+++ b/.gitignore
@@ -414,3 +414,5 @@ thunderbird-langpacks-3.1.2-20100803.tar.bz2
 /thunderbird-langpacks-115.2.2-20230920.tar.xz
 /thunderbird-115.3.0.source.tar.xz
 /thunderbird-langpacks-115.3.0-20230926.tar.xz
+/thunderbird-langpacks-115.3.1-20230929.tar.xz
+/thunderbird-115.3.1.source.tar.xz
diff --git a/sources b/sources
index 7a597b0..958a7e7 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
 SHA512 (cbindgen-vendor.tar.xz) = 161811f4adfc74e5d92871c78139704d32e1e1ad6b615c85353de300d9647a68f1ca8b1c953f7cc5539d861e9e8d8e42892cae757a3eafea78804e19bc323c16
-SHA512 (thunderbird-115.3.0.source.tar.xz) = a6fd99f9eccea5cfc8a6236a1651444fae9db99efd0ae667366638f664513e70529c63e2947b53433c1013517b23f3561cffada81d1181bd9359a02d3e059503
-SHA512 (thunderbird-langpacks-115.3.0-20230926.tar.xz) = d06c045ae250d602e1bfa88b3cf34f512d3ae52bdeff9102e2938c088252829441e012437051bc9db18d64d639af5281e258284f2f1aa341634f1113b95936a5
+SHA512 (thunderbird-langpacks-115.3.1-20230929.tar.xz) = c979cb9f42debe3c3b2950c765ee22669781033764607f8ddfb7f5e089302dec7d23fc0d1cb4a60c40fd765ddbf1000cd365b2a92d5df0ce659660f2a599d85d
+SHA512 (thunderbird-115.3.1.source.tar.xz) = e3b643cfee07d3fdd7bcc686db6dd3e81b09ecabfa9df4d34dd32acf3799b4b0b4a88e169f957d420e06aabba55c4452f3a9761db37828b025048ad5d8ef2db9
diff --git a/thunderbird.spec b/thunderbird.spec
index b6a7474..f4b904e 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -76,13 +76,13 @@ ExcludeArch: s390x
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        115.3.0
+Version:        115.3.1
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPL-2.0 OR GPL-2.0-or-later OR LGPL-2.0-or-later
 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}-20230926.tar.xz
+Source1:        thunderbird-langpacks-%{version}-20230929.tar.xz
 %endif
 Source3:        get-calendar-langpacks.sh
 Source4:        cbindgen-vendor.tar.xz
@@ -719,6 +719,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Fri Sep 29 2023 Eike Rathke <erack@redhat.com> - 115.3.1-1
+- Update to 115.3.1
+
 * Wed Sep 27 2023 Eike Rathke <erack@redhat.com> - 115.3.0-1
 - Update to 115.3.0