diff --git a/.gitignore b/.gitignore
index 2056590..49afbff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -188,3 +188,4 @@ thunderbird-langpacks-3.1.2-20100803.tar.bz2
 /thunderbird-52.4.0.source.tar.xz
 /thunderbird-langpacks-52.4.0-20171003.tar.xz
 /l10n-lightning-52.4.0.tar.xz
+/thunderbird-langpacks-52.4.0-20171004.tar.xz
diff --git a/sources b/sources
index 5a16216..f234288 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
 SHA512 (thunderbird-52.4.0.source.tar.xz) = ea371ea657c7c10abef9785131030035e541999d62f079e10c60f961190eda06d7bb56e3b1192b77df23e765542c0b61899776a076443f4ca7ad40a81612a93b
-SHA512 (thunderbird-langpacks-52.4.0-20171003.tar.xz) = 3c5ec61f2976cc12fe58580305b0b6d60f60fb83f8d4b3c32bb93ac05c6e704e831fbb30ae7d697342c955366b73a7088be4aeca948a9d489afbc0e55565800c
-SHA512 (l10n-lightning-52.4.0.tar.xz) = 8a8d19d6a84d3fb447ca8874cb857f327967a74008784a8011dc3bc13ef50d17b22bb254a65d3cb9198623d8928a4aaa6cb0f4145d3716d36931082c5d187664
+SHA512 (thunderbird-langpacks-52.4.0-20171004.tar.xz) = e93a41fe8dc9516a84cec2b5c75445e0e6f453d0f6e1ca0f4d59797c8277c82fe20bc328604dc41f94e87f1bf717191d75bde3602a9e2046b2c8a07c9dd3b192
+SHA512 (l10n-lightning-52.4.0.tar.xz) = ea2cd5991fbfe4a98873265acdcede1cbe9898dcb8e7f195b7e2d97522ae5ca0a44724eaedd9a7348875cc958f958e8a667546333643487cb2b48cd0b0b0dd3b
diff --git a/thunderbird.spec b/thunderbird.spec
index 789d7cc..e7e369d 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -72,7 +72,7 @@
 # Bump one with each minor lightning release
 %define gdata_version 3.3
 # BUMP VERSION THERE:
-%define gdata_version_internal 0.7
+%define gdata_version_internal 0.8
 %global gdata_extname %{_libdir}/mozilla/extensions/{3550f703-e582-4d05-9a08-453d09bdfdc6}/{a62ef8ec-5fdc-40c2-873c-223b8a6925cc}
 
 # The tarball is pretty inconsistent with directory structure.
@@ -102,7 +102,7 @@ License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
 Source0:        ftp://ftp.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}-20171003.tar.xz
+Source1:        thunderbird-langpacks-%{version}-20171004.tar.xz
 %endif
 # Locales for lightning
 Source2:        l10n-lightning-%{version}.tar.xz
@@ -732,8 +732,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
-* Tue Oct  3 2017 Jan Horak <jhorak@redhat.com> - 52.4.0-1
-- Update to 52.4.0
+* Wed Oct  4 2017 Jan Horak <jhorak@redhat.com> - 52.4.0-1
+- Update to 52.4.0 (b2)
+
 
 * Mon Aug 21 2017 Jan Horak <jhorak@redhat.com> - 52.3.0-1
 - Update to 52.3.0