diff --git a/ocaml-labltk.spec b/ocaml-labltk.spec
index e1ecb9e..cbedb5a 100644
--- a/ocaml-labltk.spec
+++ b/ocaml-labltk.spec
@@ -3,7 +3,7 @@ ExcludeArch: %{ix86}
 
 Name:          ocaml-labltk
 Version:       8.06.13
-Release:       5%{?dist}
+Release:       6%{?dist}
 
 Summary:       Tcl/Tk interface for OCaml
 
@@ -129,6 +129,9 @@ sed 's/8\.06\.6/%{version}/' support/META > \
 
 
 %changelog
+* Thu Oct 05 2023 Richard W.M. Jones <rjones@redhat.com> - 8.06.13-6
+- OCaml 5.1 rebuild for Fedora 40
+
 * Wed Oct  4 2023 Jerry James <loganjerry@gmail.com> - 8.06.13-5
 - Depend on ocaml-rpm-macros instead of python3