diff --git a/ocaml-ocamlbuild.spec b/ocaml-ocamlbuild.spec
index c0795e3..74f63b9 100644
--- a/ocaml-ocamlbuild.spec
+++ b/ocaml-ocamlbuild.spec
@@ -10,7 +10,7 @@ ExcludeArch: %{ix86}
 
 Name:          ocaml-ocamlbuild
 Version:       0.14.2
-Release:       3%{?dist}
+Release:       4%{?dist}
 
 Summary:       Build tool for OCaml libraries and programs
 
@@ -107,6 +107,9 @@ popd
 
 
 %changelog
+* Thu Oct 05 2023 Richard W.M. Jones <rjones@redhat.com> - 0.14.2-4
+- OCaml 5.1 rebuild for Fedora 40
+
 * Thu Jul 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 0.14.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild