diff --git a/sources b/sources
index 07453c3..ad70675 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
 212827908144b43e7c80ed9d56a08ca9  firefox-27.0.source.tar.bz2
+db06b6da6b826cfc6a49c15bca115a6b  firefox-28.0.source.tar.bz2
diff --git a/xulrunner.spec b/xulrunner.spec
index f734c3c..531e8ad 100644
--- a/xulrunner.spec
+++ b/xulrunner.spec
@@ -77,7 +77,7 @@
 
 Summary:        XUL Runtime for Gecko Applications
 Name:           xulrunner
-Version:        27.0
+Version:        28.0
 Release:        1%{?pre_tag}%{?dist}
 URL:            http://developer.mozilla.org/En/XULRunner
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -529,6 +529,9 @@ fi
 #---------------------------------------------------------------------
 
 %changelog
+* Tue Mar 18 2014 Martin Stransky <stransky@redhat.com> - 28.0-1
+- Update to 28.0
+
 * Mon Feb 3 2014 Martin Stransky <stransky@redhat.com> - 27.0-1
 - Update to 27.0