diff --git a/simspark.spec b/simspark.spec
index 27d26a1..88bc6b5 100644
--- a/simspark.spec
+++ b/simspark.spec
@@ -1,6 +1,6 @@
 Name:           simspark
 Version:        0.3.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Spark physical simulation system
 
 Group:          Development/Libraries
@@ -78,6 +78,9 @@ rm -rf %{buildroot}/%{_datadir}/doc
 %doc doc/devel/howtos doc/devel/manual.pdf
 
 %changelog
+* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.0-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Wed Jul 19 2017 Jonathan Wakely <jwakely@redhat.com> - 0.3.0-3
 - Rebuilt for s390x binutils bug