diff --git a/ocaml-ounit.changes b/ocaml-ounit.changes
index 6ecd445..d156aa6 100644
--- a/ocaml-ounit.changes
+++ b/ocaml-ounit.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Sep 30 12:34:56 UTC 2019 - ohering@suse.de
+
+- use dune macros from ocaml-rpm-macros
+
 -------------------------------------------------------------------
 Mon Sep 23 16:35:39 UTC 2019 - ohering@suse.de
 
diff --git a/ocaml-ounit.spec b/ocaml-ounit.spec
index edca213..bcc034a 100644
--- a/ocaml-ounit.spec
+++ b/ocaml-ounit.spec
@@ -27,7 +27,7 @@ Url:            https://github.com/gildor478/ounit
 Source0:        %{name}-%{version}.tar.xz
 BuildRequires:  ocaml
 BuildRequires:  ocaml-dune
-BuildRequires:  ocaml-rpm-macros
+BuildRequires:  ocaml-rpm-macros >= 20190930
 BuildRequires:  ocamlfind(bytes)
 BuildRequires:  ocamlfind(lwt)
 BuildRequires:  ocamlfind(lwt.unix)