diff --git a/.gitignore b/.gitignore
index 3ab0c01..651b58a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -87,3 +87,5 @@ SOURCES/nss-3.79.0-6.el8_1.src.rpm
 /firefox-langpacks-128.4.0esr-20241022.tar.xz
 /firefox-128.5.0esr.processed-source.tar.xz
 /firefox-langpacks-128.5.0esr-20241119.tar.xz
+/firefox-128.5.1esr.processed-source.tar.xz
+/firefox-langpacks-128.5.1esr-20241202.tar.xz
diff --git a/firefox.spec b/firefox.spec
index 288d3fa..c9b4833 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -149,7 +149,7 @@ end}
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        128.5.0
+Version:        128.5.1
 Release:        1%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -180,7 +180,7 @@ ExcludeArch:    aarch64 s390 ppc
 # Link to original tarball: https://archive.mozilla.org/pub/firefox/releases/%%{version}%%{?pre_version}/source/firefox-%%{version}%%{?pre_version}.source.tar.xz
 Source0:        firefox-%{version}%{?pre_version}%{?buildnum}.processed-source.tar.xz
 %if %{with langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20241119.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20241202.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        process-official-tarball
@@ -1919,6 +1919,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Mon Dec 02 2024 Eike Rathke <erack@redhat.com> - 128.5.1-1
+- Update to 128.5.1
+
 * Tue Nov 19 2024 Eike Rathke <erack@redhat.com> - 128.5.0-1
 - Update to 128.5.0 build1
 
diff --git a/sources b/sources
index b27d82c..ad8b073 100644
--- a/sources
+++ b/sources
@@ -4,5 +4,5 @@ SHA512 (nspr-4.35.0-1.el8_1.src.rpm) = 5123a443fcc42602e31104999be339ae899eb7b1f
 SHA512 (nss-3.101.0-7.el9_2.src.rpm) = 7c325e0e437c1266031af02b3a026d20b789548ae435be6c39d710aa9d19c967ac0a79097fd50dd8ab878bf0d72c19e937d54863aa8cd0654ef2ef288e3102ec
 SHA512 (nss-3.101.0-7.el8_2.src.rpm) = c25551b06cf9239bb54aaf3edaea2c60804b449de4e06af4f5192bc181b5c6468ea8a69ddeff9de1b11bfc123e894b1ce8fc5d6deddfd5062f8736b75db56f8d
 SHA512 (wasi-sdk-20.tar.gz) = 95be9d9b41ed1f7884e9cd68bad22abbb355b049fd09731c89b9e36666d0205b1a16ec9c21820adf0c5a34e2048015cbfbef0542170d466fa3336c636873c405
-SHA512 (firefox-128.5.0esr.processed-source.tar.xz) = 7cdd410a6720c699c4f95adb226151090673ef535fe7b49f37ee2f9dfc8be5b62ffc58f98537b74239774505be8ace822aadee805af84c9456e2889fb19a985a
-SHA512 (firefox-langpacks-128.5.0esr-20241119.tar.xz) = f4ffa0334661a6b32c64bcf21442720882118ed109a580d0815a8ff99da96db6d3bf92eb0a8a204632140fecb89519d10403f13b94a4786165901054013226ef
+SHA512 (firefox-128.5.1esr.processed-source.tar.xz) = 4df7073c8eae768d410709808219e4e2c08f24eccc722141393076b08822069c40b190e556d05c2c89fdbc376a08c5f386ae4acebe51c838f6af2d84a91fdf15
+SHA512 (firefox-langpacks-128.5.1esr-20241202.tar.xz) = 4fec75bd65613376998975d6a35b6d2c805c7989523171498c680a76330047c19e384492c28a7355120951e8b108a9e70a565adc8f6b0d88a2a06f11a602bbfb