diff --git a/ocaml-dune.spec b/ocaml-dune.spec
index 8b6906c..06d7a26 100644
--- a/ocaml-dune.spec
+++ b/ocaml-dune.spec
@@ -6,7 +6,7 @@
 
 Name:           ocaml-%{libname}
 Version:        2.8.2
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        A composable build system for OCaml
 
 # Dune itself is MIT.  Some bundled libraries have a different license:
@@ -210,6 +210,9 @@ cp -ar README.md CHANGES.md MIGRATION.md doc/_build/* %{buildroot}%{_pkgdocdir}/
 %{_emacs_sitelispdir}/dune*
 
 %changelog
+* Mon Mar  1 10:09:48 GMT 2021 Richard W.M. Jones <rjones@redhat.com> - 2.8.2-4
+- OCaml 4.12.0 build
+
 * Mon Feb  1 2021 Richard W.M. Jones <rjones@redhat.com> - 2.8.2-3
 - Bump and rebuild for updated ocaml Dynlink dependency.