diff --git a/abc.spec b/abc.spec
index 26b487f..d323bb7 100644
--- a/abc.spec
+++ b/abc.spec
@@ -16,7 +16,7 @@
 
 Name:           abc
 Version:        1.01
-Release:        11.hg%{hgdate}%{?dist}
+Release:        12.hg%{hgdate}%{?dist}
 Summary:        Sequential logic synthesis and formal verification
 
 License:        MIT
@@ -129,6 +129,9 @@ install -p -m 0644 %{name}.1 %{buildroot}%{_mandir}/man1
 %{_libdir}/lib%{name}.so
 
 %changelog
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.01-12.hg20160905
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.01-11.hg20160905
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild