diff --git a/ghc-regexpr.spec b/ghc-regexpr.spec
index 491da81..a513d84 100644
--- a/ghc-regexpr.spec
+++ b/ghc-regexpr.spec
@@ -6,7 +6,7 @@
 
 Name:           ghc-%{pkg_name}
 Version:        0.5.4
-Release:        20%{?dist}
+Release:        21%{?dist}
 Summary:        Regular expression like Perl/Ruby in Haskell
 
 License:        LGPLv3+
@@ -65,6 +65,9 @@ This package provides the Haskell %{pkg_name} library development files.
 
 
 %changelog
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.4-21
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Fri Feb 24 2017 Jens Petersen <petersen@redhat.com> - 0.5.4-20
 - refresh to cabal-rpm-0.11.1