diff --git a/ghc-reducers.spec b/ghc-reducers.spec
index a2cf321..2926f07 100644
--- a/ghc-reducers.spec
+++ b/ghc-reducers.spec
@@ -6,7 +6,7 @@
 
 Name:           ghc-%{pkg_name}
 Version:        3.12.3
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Semigroups, specialized containers and general map/reduce
 
 License:        BSD
@@ -75,6 +75,9 @@ This package provides the Haskell %{pkg_name} library development files.
 
 
 %changelog
+* Thu Jan 31 2019 Fedora Release Engineering <releng@fedoraproject.org> - 3.12.3-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
+
 * Sat Jul 28 2018 Jens Petersen <petersen@redhat.com> - 3.12.3-3
 - rebuild