diff --git a/.gitignore b/.gitignore
index f2a4c1b..26e62a1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,5 +2,5 @@ cbindgen-vendor.tar.xz
 nspr-4.35.0-1.el8_1.src.rpm
 nss-3.101.0-7.el8_2.src.rpm
 nss-3.101.0-7.el9_2.src.rpm
-thunderbird-128.12.0esr.processed-source.tar.xz
-thunderbird-langpacks-128.12.0esr-20250630.tar.xz
+thunderbird-128.13.0esr.b3.processed-source.tar.xz
+thunderbird-langpacks-128.13.0esr-20250723.tar.xz
diff --git a/sources b/sources
index ab642f8..e76bb06 100644
--- a/sources
+++ b/sources
@@ -2,5 +2,5 @@ SHA512 (cbindgen-vendor.tar.xz) = 0c7a40033ccd38dadd30ad064feef390444af4562be07d
 SHA512 (nspr-4.35.0-1.el8_1.src.rpm) = 5123a443fcc42602e31104999be339ae899eb7b1f1e2f1ea87ba4f283eb894d08ab568e421dba1df4770f23be91ff88aa6a0748bce7feef31ed88bee5bdecb2c
 SHA512 (nss-3.101.0-7.el8_2.src.rpm) = c25551b06cf9239bb54aaf3edaea2c60804b449de4e06af4f5192bc181b5c6468ea8a69ddeff9de1b11bfc123e894b1ce8fc5d6deddfd5062f8736b75db56f8d
 SHA512 (nss-3.101.0-7.el9_2.src.rpm) = 7c325e0e437c1266031af02b3a026d20b789548ae435be6c39d710aa9d19c967ac0a79097fd50dd8ab878bf0d72c19e937d54863aa8cd0654ef2ef288e3102ec
-SHA512 (thunderbird-128.12.0esr.processed-source.tar.xz) = 14f140b618195c61b0038742b93925799c7e916387c51a4d0d89740312ec92ad15d69f68d5314472b1094e21e8efbee706daa7894c7034233048e6268d771a37
-SHA512 (thunderbird-langpacks-128.12.0esr-20250630.tar.xz) = d10960bb709ced33a2738953d8d997e87bbe385982b4cba7b060a0e8c4e62f480b76f8e7dea47b8d4f7fb045339ff152c36f155a97aa309da53dc7f6935c23ed
+SHA512 (thunderbird-128.13.0esr.b3.processed-source.tar.xz) = f68b310c8623ebcf3c296569d18300d329fed7164448b1422e9ed203834d32f0b2b549b2dc1f20d0ce7176f8616ef8ec17fe3a74963dc1c78951340b0ed77ffe
+SHA512 (thunderbird-langpacks-128.13.0esr-20250723.tar.xz) = cb866a5f93ef3f9bcc0d23de9ac0859fef5884edc353895c5bf1c5ed6d90d1148f137c86c19b9c7d6381eafa7fe8a689f0c7ead652ba4fadb3c55e4ea038a2a8
diff --git a/thunderbird.spec b/thunderbird.spec
index f49afd3..874284e 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -127,7 +127,7 @@ end}
 # If set to .b2 or .b3 ... the processed source file needs to be renamed before upload, e.g.
 # thunderbird-102.8.0.b2.processed-source.tar.xz
 # When unset use processed source file name as is.
-#%%global buildnum .b2
+%global buildnum .b3
 
 %bcond_without langpacks
 
@@ -137,8 +137,8 @@ end}
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        128.12.0
-Release:        1%{?dist}
+Version:        128.13.0
+Release:        3%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 
@@ -165,7 +165,7 @@ ExcludeArch:    %{ix86}
 #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 %{with langpacks}
-Source1:        thunderbird-langpacks-%{version}%{?pre_version}-20250630.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?pre_version}-20250723.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        process-official-tarball
@@ -1071,7 +1071,9 @@ echo "--------------------------------------------"
 %patch -P12 -p1 -b .firefox-system-nss-replace-xyber-with-mlkem
 %patch -P13 -p1 -b .thunderbird-system-nss-replace-xyber-with-mlkem
 %endif
+%if 0%{?rhel} == 8
 %patch -P14 -p1 -b .cargo-lock-version
+%endif
 
 # -- Upstreamed patches --
 %patch -P51 -p1 -b .mozilla-bmo1170092
@@ -1658,6 +1660,15 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Wed Jul 23 2025 Eike Rathke <erack@redhat.com> - 128.13.0-3
+- Update to 128.13.0 build3
+
+* Tue Jul 22 2025 Eike Rathke <erack@redhat.com> - 128.13.0-2
+- Update to 128.13.0 build2
+
+* Mon Jul 21 2025 Eike Rathke <erack@redhat.com> - 128.13.0-1
+- Update to 128.13.0 build1
+
 * Mon Jun 30 2025 Eike Rathke <erack@redhat.com> - 128.12.0-1
 - Update to 128.12.0 build1