diff --git a/libpng12.spec b/libpng12.spec
index 9921d2c..255378f 100644
--- a/libpng12.spec
+++ b/libpng12.spec
@@ -1,7 +1,7 @@
 Summary: Old version of libpng, needed to run old binaries
 Name: libpng12
 Version: 1.2.50
-Release: 3%{?dist}
+Release: 4%{?dist}
 License: zlib
 Group: System Environment/Libraries
 URL: http://www.libpng.org/pub/png/
@@ -73,6 +73,9 @@ rm -rf $RPM_BUILD_ROOT%{_mandir}/man5/*
 %{_mandir}/man3/*
 
 %changelog
+* Sat Aug 03 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.50-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
+
 * Thu Feb 14 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.50-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild