diff --git a/.gitignore b/.gitignore
index 37384b6..dfc99b1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -149,3 +149,6 @@ thunderbird-langpacks-3.1.2-20100803.tar.bz2
 /thunderbird-45.3.0.source.tar.xz
 /thunderbird-langpacks-45.3.0-20160901.tar.xz
 /l10n-lightning-45.3.0.tar.xz
+/thunderbird-45.4.0.source.tar.xz
+/thunderbird-langpacks-45.4.0-20161006.tar.xz
+/l10n-lightning-45.4.0.tar.xz
diff --git a/sources b/sources
index e4d1b85..1835d55 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
-3cdb5f1296ab3aabe0351e07b3572a4b  thunderbird-45.3.0.source.tar.xz
-2d1f58c01e0cdf5a09899c4ca0c5212f  thunderbird-langpacks-45.3.0-20160901.tar.xz
-dbc95923d646b0f99eec55b68836d276  l10n-lightning-45.3.0.tar.xz
+f90365e69f33efa8c2e69bbc6bb5b3a3  thunderbird-45.4.0.source.tar.xz
+7c4481aa0997987c0bc0afcc3f58a6ac  thunderbird-langpacks-45.4.0-20161006.tar.xz
+30259ce57a08bbb3d3d07b1211438006  l10n-lightning-45.4.0.tar.xz
diff --git a/thunderbird.spec b/thunderbird.spec
index 46340ed..ee978ff 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -45,7 +45,7 @@
 %define thunderbird_app_id \{3550f703-e582-4d05-9a08-453d09bdfdc6\} 
 # Bump one with each minor lightning release
 %define gdata_version 2.6
-%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.
@@ -55,7 +55,7 @@
 # set to the cwd, ie: '.'
 %define objdir       objdir
 %define mozappdir    %{_libdir}/%{name}
-%define tarballdir   thunderbird-45.3.0
+%define tarballdir   thunderbird-45.4.0
 
 %define official_branding 1
 # enable crash reporter only for iX86
@@ -68,14 +68,14 @@
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        45.3.0
-Release:        2%{?dist}
+Version:        45.4.0
+Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 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}-20160901.tar.xz
+Source1:        thunderbird-langpacks-%{version}-20161006.tar.xz
 %endif
 # Locales for lightning
 Source2:        l10n-lightning-%{version}.tar.xz
@@ -616,6 +616,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Thu Oct  6 2016 Jan Horak <jhorak@redhat.com> - 45.4.0-1
+- Update to 45.4.0
+
 * Thu Sep 22 2016 Jan Horak <jhorak@redhat.com> - 45.3.0-2
 - Removed dependency on cairo (bz#1377910)