diff --git a/.gitignore b/.gitignore
index bf36866..638f946 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,5 @@ firefox-3.6.4.source.tar.bz2
 /firefox-langpacks-4.0rc2-20110318.tar.xz
 /firefox-4.0.source.tar.bz2
 /firefox-langpacks-4.0-20110322.tar.xz
+/firefox-4.0.1.source.tar.bz2
+/firefox-langpacks-4.0.1-20110428.tar.xz
diff --git a/firefox.spec b/firefox.spec
index 6d8d791..1e495b0 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -44,14 +44,14 @@
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        4.0
-Release:        4%{?pre_tag}%{?dist}
+Version:        4.0.1
+Release:        1%{?pre_tag}%{?dist}
 URL:            http://www.mozilla.org/projects/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
 Source0:        ftp://ftp.mozilla.org/pub/firefox/releases/%{version}%{?pre_version}/source/firefox-%{version}%{?pre_version}.source.tar.bz2
 %if %{build_langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20110322.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20110428.tar.xz
 %endif
 Source10:       firefox-mozconfig
 Source11:       firefox-mozconfig-branded
@@ -348,6 +348,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Thu Apr 28 2011 Christopher Aillon <caillon@redhat.com> - 4.0.1-1
+- Update to 4.0.1
+
 * Thu Apr 21 2011 Christopher Aillon <caillon@redhat.com> - 4.0-4
 - Spec file cleanups
 
diff --git a/sources b/sources
index 2024297..a8cecb0 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-3468a2c463b4fc2788ba621e4b511c30  firefox-4.0.source.tar.bz2
-41801180d1be2f7d009d865fe2252644  firefox-langpacks-4.0-20110322.tar.xz
+9abda7d23151e97913c8555a64c13f34  firefox-4.0.1.source.tar.bz2
+409894961e0124c53142af94978a7ae3  firefox-langpacks-4.0.1-20110428.tar.xz