diff --git a/.gitignore b/.gitignore
index e689954..a923da8 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-128.11.0esr.processed-source.tar.xz
-thunderbird-langpacks-128.11.0esr-20250526.tar.xz
+thunderbird-128.10.1esr.processed-source.tar.xz
+thunderbird-langpacks-128.10.1esr-20250519.tar.xz
diff --git a/sources b/sources
index 8aafdb3..4aa4da5 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-128.11.0esr.processed-source.tar.xz) = 8c31e376ccfa9a9c8ce9749aa9116a9cf68bdae542232be15c5ac5bf5845de32295031e037e9f40d8d8c8c8cb0c047dee02538e3f8abe051cdbe88ca6057921f
-SHA512 (thunderbird-langpacks-128.11.0esr-20250526.tar.xz) = a0c77dbea3513fb2d62016b0232d83f0a86cf66be96abd5a8ea77bcfdc59e00ae5013adbe2e492b193700ad3e795379a03665981a63f5e93c6e8962c71fc09b6
+SHA512 (thunderbird-128.10.1esr.processed-source.tar.xz) = e5da88dec5401a55227d32af7076d39004ffca54864994f6ca0b666772bbba6c2a21af4436080a7c7498230e553e477889e3084732e4417550102238755dd31e
+SHA512 (thunderbird-langpacks-128.10.1esr-20250519.tar.xz) = a0d25c94460137ccf23e8ee90c590eb749de414e16afa38870e7f73ca9ed704ede04d4cfc3a4ad1c6717826f5d1932d7c8e4c7c25fb8c3750481819f0d0f106d
diff --git a/thunderbird.spec b/thunderbird.spec
index 3547782..42fd592 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -137,7 +137,7 @@ end}
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        128.11.0
+Version:        128.10.1
 Release:        1%{?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}-20250526.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?pre_version}-20250519.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        process-official-tarball
@@ -1660,9 +1660,6 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
-* Mon May 26 2025 Eike Rathke <erack@redhat.com> - 128.11.0-1
-- Update to 128.11.0
-
 * Mon May 19 2025 Eike Rathke <erack@redhat.com> - 128.10.1-1
 - Update to 128.10.1