diff --git a/.gitignore b/.gitignore
index 73d485f..7a8adb5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -428,3 +428,5 @@ thunderbird-langpacks-3.1.2-20100803.tar.bz2
 /thunderbird-langpacks-115.4.3-20231115.tar.xz
 /thunderbird-115.5.0.source.tar.xz
 /thunderbird-langpacks-115.5.0-20231121.tar.xz
+/thunderbird-115.5.1.source.tar.xz
+/thunderbird-langpacks-115.5.1-20231128.tar.xz
diff --git a/sources b/sources
index e8f3768..14722d6 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
 SHA512 (cbindgen-vendor.tar.xz) = 161811f4adfc74e5d92871c78139704d32e1e1ad6b615c85353de300d9647a68f1ca8b1c953f7cc5539d861e9e8d8e42892cae757a3eafea78804e19bc323c16
-SHA512 (thunderbird-115.5.0.source.tar.xz) = 3ada7ad6aeca07edd732e0beaaf765f2da8282e4d3bed967d68f42f4d612842f0e470bd43c24de0e92829eb137c1031999f50456165de0b7735502a83deb42e5
-SHA512 (thunderbird-langpacks-115.5.0-20231121.tar.xz) = f9491ac165ea6e7a2d369e36fe8494300a1714543b5ee7b0cf2a86bc4f7b8b4839fc72a3af66a7d5c5308e4343296c38dc1bc4715e0f0b7aba042df45bfec350
+SHA512 (thunderbird-115.5.1.source.tar.xz) = 5ddc39b3591427d283c5497f68a1d722409aba54d53342a36a259daa219d8135ecf88868b12235eb9536f46f825722cf6da2781b71a2e10b816281231394b4f9
+SHA512 (thunderbird-langpacks-115.5.1-20231128.tar.xz) = 17ac261f53ac7f2c1e52ddf24062cc4859ca5dc8300aa6bc74499584c0ff8d43334a329869757e69d02751ffb1baccb93efeefec5e3c59f86dade99381169f73
diff --git a/thunderbird.spec b/thunderbird.spec
index 6d03ef8..f3c0cf0 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -76,13 +76,13 @@ ExcludeArch: s390x
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        115.5.0
+Version:        115.5.1
 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}-20231121.tar.xz
+Source1:        thunderbird-langpacks-%{version}-20231128.tar.xz
 %endif
 Source3:        get-calendar-langpacks.sh
 Source4:        cbindgen-vendor.tar.xz
@@ -717,6 +717,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Tue Nov 28 2023 Eike Rathke <erack@redhat.com> - 115.5.1-1
+- Update to 115.5.1
+
 * Fri Nov 24 2023 Eike Rathke <erack@redhat.com> - 115.5.0-1
 - Update to 115.5.0