diff --git a/ghc-NumInstances.spec b/ghc-NumInstances.spec
index 5ad6719..da61278 100644
--- a/ghc-NumInstances.spec
+++ b/ghc-NumInstances.spec
@@ -6,7 +6,7 @@
 
 Name:           ghc-%{pkg_name}
 Version:        1.4
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        Instances of numeric classes for functions and tuples
 
 License:        BSD
@@ -63,6 +63,9 @@ This package provides the Haskell %{pkg_name} library development files.
 
 
 %changelog
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.4-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Fri Feb 24 2017 Jens Petersen <petersen@redhat.com> - 1.4-5
 - refresh to cabal-rpm-0.11.1