diff --git a/ocaml-lablgtk3.spec b/ocaml-lablgtk3.spec
index 3940659..53b4bc2 100644
--- a/ocaml-lablgtk3.spec
+++ b/ocaml-lablgtk3.spec
@@ -6,7 +6,7 @@
 
 Name:           ocaml-%{pkgname}
 Version:        3.1.1
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        OCaml interface to gtk3
 
 License:        LGPLv2+ with exceptions
@@ -235,6 +235,9 @@ dune runtest
 %{_libdir}/ocaml/lablgtk3-sourceview3/opam
 
 %changelog
+* Mon Mar  1 15:56:21 GMT 2021 Richard W.M. Jones <rjones@redhat.com> - 3.1.1-5
+- OCaml 4.12.0 build
+
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 3.1.1-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild