diff --git a/libwebp.spec b/libwebp.spec
index d15daca..c03d0fd 100644
--- a/libwebp.spec
+++ b/libwebp.spec
@@ -2,7 +2,7 @@
 
 Name:          libwebp
 Version:       0.4.0
-Release:       3%{?dist}
+Release:       4%{?dist}
 Group:         Development/Libraries
 URL:           http://webmproject.org/
 Summary:       Library and tools for the WebP graphics format
@@ -128,6 +128,9 @@ cp swig/*.jar swig/*.so %{buildroot}/%{_libdir}/%{name}-java/
 %{_libdir}/%{name}-java/
 
 %changelog
+* Sat Jun 07 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.4.0-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
+
 * Tue Apr 08 2014 Jaromir Capik <jcapik@redhat.com> - 0.4.0-3
 - Fixing endian checks (#962091)
 - Fixing FTPBS caused by rpath presence