diff --git a/ocaml-calendar.spec b/ocaml-calendar.spec
index 273cccd..19ea8fe 100644
--- a/ocaml-calendar.spec
+++ b/ocaml-calendar.spec
@@ -16,7 +16,7 @@ ExcludeArch: %{ix86}
 
 Name:           ocaml-calendar
 Version:        3.0.0
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        Objective Caml library for managing dates and times
 License:        LGPL-2.1-or-later WITH OCaml-LGPL-linking-exception
 
@@ -75,6 +75,9 @@ developing applications that use %{name}.
 
 
 %changelog
+* Mon Dec 18 2023 Richard W.M. Jones <rjones@redhat.com> - 3.0.0-6
+- OCaml 5.1.1 + s390x code gen fix for Fedora 40
+
 * Tue Dec 12 2023 Richard W.M. Jones <rjones@redhat.com> - 3.0.0-5
 - OCaml 5.1.1 rebuild for Fedora 40