diff --git a/unlambda.spec b/unlambda.spec
index 018b391..fdeb5ff 100644
--- a/unlambda.spec
+++ b/unlambda.spec
@@ -6,7 +6,7 @@
 
 Name:           %{pkg_name}
 Version:        0.1.4.2
-Release:        11%{?dist}
+Release:        12%{?dist}
 Summary:        Unlambda interpreter
 
 License:        GPL+
@@ -95,6 +95,9 @@ iconv -f iso8859-1 -t utf-8 Language/Unlambda.hs > Language/Unlambda.conv && mv
 
 
 %changelog
+* Sat Jul 27 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.1.4.2-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
 * Sun Feb 17 2019 Jens Petersen <petersen@redhat.com> - 0.1.4.2-11
 - refresh to cabal-rpm-0.13