diff --git a/.gitignore b/.gitignore
index e72b61c..3c597f5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 SOURCES/cbindgen-vendor.tar.xz
 SOURCES/nspr-4.34.0-3.el8_1.src.rpm
 SOURCES/nss-3.79.0-11.el8_1.src.rpm
-SOURCES/thunderbird-102.15.0.processed-source.tar.xz
-SOURCES/thunderbird-langpacks-102.15.0-20230828.tar.xz
+SOURCES/thunderbird-102.15.1.processed-source.tar.xz
+SOURCES/thunderbird-langpacks-102.15.1-20230913.tar.xz
 SOURCES/thunderbird-symbolic.svg
diff --git a/.thunderbird.metadata b/.thunderbird.metadata
index 664d1af..23f03f1 100644
--- a/.thunderbird.metadata
+++ b/.thunderbird.metadata
@@ -1,6 +1,6 @@
 2a430d6252dbea45482ba316a6e9fa605c15e747 SOURCES/cbindgen-vendor.tar.xz
 af58b3c87a8b5491dde63b07efaeb3d7f1ec56c1 SOURCES/nspr-4.34.0-3.el8_1.src.rpm
 a9dd43799ab2ccbc248cfbba1cc5639c1ab18769 SOURCES/nss-3.79.0-11.el8_1.src.rpm
-328b34b1c10a251a49ff7c047fb09f4195a2894f SOURCES/thunderbird-102.15.0.processed-source.tar.xz
-0dd2e6ee4bda9d8faa77c0e7ead56a84c5f62a96 SOURCES/thunderbird-langpacks-102.15.0-20230828.tar.xz
+d0810f989e325cd666650fb2917874e6c39803fb SOURCES/thunderbird-102.15.1.processed-source.tar.xz
+b48034523269fd13c8a425884912ee57aaac350c SOURCES/thunderbird-langpacks-102.15.1-20230913.tar.xz
 42e80b86948cdba0f69af5b15a69bc6a1274d938 SOURCES/thunderbird-symbolic.svg
diff --git a/SOURCES/thunderbird-centos-default-prefs.js b/SOURCES/thunderbird-centos-default-prefs.js
deleted file mode 100644
index c27d9d3..0000000
--- a/SOURCES/thunderbird-centos-default-prefs.js
+++ /dev/null
@@ -1,36 +0,0 @@
-pref("app.update.enabled", false);
-pref("app.update.autoInstallEnabled", false);
-/* Allow users to set custom colors*/
-/* pref("browser.display.use_system_colors",   true);*/
-pref("general.useragent.vendor", "CentOS");
-pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
-pref("intl.locale.matchOS", true);
-pref("mail.shell.checkDefaultClient", false);
-pref("toolkit.networkmanager.disable", false);
-pref("offline.autoDetect", true);
-
-/* Disable global indexing by default*/
-pref("mailnews.database.global.indexer.enabled", false);
-
-/* Do not switch to Smart Folders after upgrade to 3.0b4 */
-pref("mail.folder.views.version", "1");
-pref("extensions.shownSelectionUI", true);
-pref("extensions.autoDisableScopes", 0);
-
-/* For rhbz#1024232 */
-pref("ui.SpellCheckerUnderlineStyle",       1);
-
-/* Workaround for rhbz#1753011 */
-pref("spellchecker.dictionary_path", "/usr/share/myspell");
-/* Workaround for rhbz#1134876 */
-pref("javascript.options.baselinejit",      false);
-/* Workaround for rhbz#1110291 */
-pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
-/* Workaround for mozbz#1063315 */
-pref("security.use_mozillapkix_verification", false);
-/* Use OS settings for UI language */
-pref("intl.locale.requested", "");
-/* Disable telemetry */
-pref("datareporting.healthreport.uploadEnabled", false);
-pref("datareporting.policy.dataSubmissionEnabled", false);
-pref("toolkit.telemetry.archive.enabled", false);
diff --git a/SOURCES/thunderbird-redhat-default-prefs.js b/SOURCES/thunderbird-redhat-default-prefs.js
new file mode 100644
index 0000000..4d01b78
--- /dev/null
+++ b/SOURCES/thunderbird-redhat-default-prefs.js
@@ -0,0 +1,36 @@
+pref("app.update.enabled", false);
+pref("app.update.autoInstallEnabled", false);
+/* Allow users to set custom colors*/
+/* pref("browser.display.use_system_colors",   true);*/
+pref("general.useragent.vendor", "Red Hat");
+pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
+pref("intl.locale.matchOS", true);
+pref("mail.shell.checkDefaultClient", false);
+pref("toolkit.networkmanager.disable", false);
+pref("offline.autoDetect", true);
+
+/* Disable global indexing by default*/
+pref("mailnews.database.global.indexer.enabled", false);
+
+/* Do not switch to Smart Folders after upgrade to 3.0b4 */
+pref("mail.folder.views.version", "1");
+pref("extensions.shownSelectionUI", true);
+pref("extensions.autoDisableScopes", 0);
+
+/* For rhbz#1024232 */
+pref("ui.SpellCheckerUnderlineStyle",       1);
+
+/* Workaround for rhbz#1753011 */
+pref("spellchecker.dictionary_path", "/usr/share/myspell");
+/* Workaround for rhbz#1134876 */
+pref("javascript.options.baselinejit",      false);
+/* Workaround for rhbz#1110291 */
+pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
+/* Workaround for mozbz#1063315 */
+pref("security.use_mozillapkix_verification", false);
+/* Use OS settings for UI language */
+pref("intl.locale.requested", "");
+/* Disable telemetry */
+pref("datareporting.healthreport.uploadEnabled", false);
+pref("datareporting.policy.dataSubmissionEnabled", false);
+pref("toolkit.telemetry.archive.enabled", false);
diff --git a/SPECS/thunderbird.spec b/SPECS/thunderbird.spec
index 3af29f7..b414455 100644
--- a/SPECS/thunderbird.spec
+++ b/SPECS/thunderbird.spec
@@ -183,7 +183,7 @@ end}
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        102.15.0
+Version:        102.15.1
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -211,12 +211,12 @@ ExcludeArch:    aarch64 s390 ppc
 #Source0:        https://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.processed-source.tar.xz
 Source0:        thunderbird-%{version}%{?pre_version}%{?buildnum}.processed-source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}-20230828.tar.xz
+Source1:        thunderbird-langpacks-%{version}-20230913.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        process-official-tarball
 Source10:       thunderbird-mozconfig
-Source12:       thunderbird-centos-default-prefs.js
+Source12:       thunderbird-redhat-default-prefs.js
 Source20:       thunderbird.desktop
 Source21:       thunderbird.sh.in
 Source24:       mozilla-api-key
@@ -1275,8 +1275,8 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
-* Mon Sep 04 2023 CentOS Sources <bugs@centos.org> - 102.15.0-1.el7.centos
-- rebrand default prefs
+* Wed Sep 13 2023 Eike Rathke <erack@redhat.com> - 102.15.1-1
+- Update to 102.15.1
 
 * Mon Aug 28 2023 Eike Rathke <erack@redhat.com> - 102.15.0-1
 - Update to 102.15.0 build1