diff --git a/ginac.spec b/ginac.spec
index 7409524..4dd5df6 100644
--- a/ginac.spec
+++ b/ginac.spec
@@ -5,7 +5,7 @@
 Name:             ginac
 Version:          1.7.2
 #Release:          10.%{gitdate}git%{gitrev}%{?dist}
-Release:          3%{?dist}
+Release:          4%{?dist}
 Summary:          C++ library for symbolic calculations
 License:          GPLv2+
 URL:              http://www.ginac.de/
@@ -105,6 +105,9 @@ fi
 %{_bindir}/*
 
 %changelog
+* Mon May 15 2017 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.7.2-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_27_Mass_Rebuild
+
 * Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.7.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild