diff --git a/ocaml-lwt.spec b/ocaml-lwt.spec
index aa2eac5..50e8149 100644
--- a/ocaml-lwt.spec
+++ b/ocaml-lwt.spec
@@ -2,7 +2,7 @@
 
 Name:           ocaml-lwt
 Version:        2.5.0
-Release:        11%{?dist}
+Release:        12%{?dist}
 Summary:        OCaml lightweight thread library
 
 # The openssl linking exception is granted.
@@ -94,6 +94,9 @@ OCAMLPATH=$RPM_BUILD_ROOT%{_libdir}/ocaml ocamlfind query lwt.react
 
 
 %changelog
+* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.5.0-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Tue Jun 27 2017 Richard W.M. Jones <rjones@redhat.com> - 2.5.0-11
 - Bump release and rebuild.