diff --git a/ocaml-dune.spec b/ocaml-dune.spec
index 4d02316..6e05510 100644
--- a/ocaml-dune.spec
+++ b/ocaml-dune.spec
@@ -6,7 +6,7 @@
 
 Name:           ocaml-%{libname}
 Version:        2.5.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        A composable build system for OCaml
 
 # Dune itself is MIT.  Some bundled libraries have a different license:
@@ -190,6 +190,9 @@ cp -ar README.md CHANGES.md MIGRATION.md doc/_build/* %{buildroot}%{_pkgdocdir}/
 %{_emacs_sitelispdir}/dune*
 
 %changelog
+* Mon May 04 2020 Richard W.M. Jones <rjones@redhat.com> - 2.5.1-4
+- OCaml 4.11.0+dev2-2020-04-22 rebuild
+
 * Tue Apr 21 2020 Richard W.M. Jones <rjones@redhat.com> - 2.5.1-3
 - OCaml 4.11.0 pre-release attempt 2
 - Rename cond "bootstrap" as "menhir".