diff --git a/sdformat.spec b/sdformat.spec
index 2415a0e..81071a3 100644
--- a/sdformat.spec
+++ b/sdformat.spec
@@ -2,7 +2,7 @@
 
 Name:		sdformat
 Version:	5.1.0
-Release:	3%{?dist}
+Release:	4%{?dist}
 Summary:	The Simulation Description Format
 
 License:	ASL 2.0
@@ -112,6 +112,9 @@ make -C build test ARGS="-V -E INTEGRATION_schema_test"
 %doc build/doxygen/html
 
 %changelog
+* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 5.1.0-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Mon Jul 24 2017 Björn Esser <besser82@fedoraproject.org> - 5.1.0-3
 - Rebuilt for Boost 1.64