diff --git a/ghc-pretty-show.spec b/ghc-pretty-show.spec
index c9237e8..184efab 100644
--- a/ghc-pretty-show.spec
+++ b/ghc-pretty-show.spec
@@ -6,7 +6,7 @@
 
 Name:           ghc-%{pkg_name}
 Version:        1.6.12
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Tools for working with derived Show instances and generic inspection of values
 
 License:        MIT
@@ -89,6 +89,9 @@ ln -s %{_webassetdir}/jquery/1/jquery.min.js %{_style_dir}/jquery.js
 
 
 %changelog
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.6.12-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Fri Feb 24 2017 Jens Petersen <petersen@redhat.com> - 1.6.12-3
 - refresh to cabal-rpm-0.11.1