diff --git a/ocaml-cppo.spec b/ocaml-cppo.spec
index 18437dc..e28c859 100644
--- a/ocaml-cppo.spec
+++ b/ocaml-cppo.spec
@@ -3,7 +3,7 @@ ExcludeArch: %{ix86}
 
 Name:           ocaml-cppo
 Version:        1.6.9
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Equivalent of the C preprocessor for OCaml programs
 
 License:        BSD-3-Clause
@@ -71,6 +71,9 @@ at build time.  To use it, call ocamlbuild with the argument
 
 
 %changelog
+* Thu Oct 05 2023 Richard W.M. Jones <rjones@redhat.com> - 1.6.9-4
+- OCaml 5.1 rebuild for Fedora 40
+
 * Thu Jul 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.6.9-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild