diff --git a/ocaml-dune.spec b/ocaml-dune.spec
index 56a2833c07cc80be47b5d6881fcab3190f781bf1..fef37e581bddf57f27c7ac4f295158c4b1ee0f75 100644
--- a/ocaml-dune.spec
+++ b/ocaml-dune.spec
@@ -6,7 +6,7 @@
 
 Name:           ocaml-%{libname}
 Version:        2.9.1
-Release:        1
+Release:        2
 Summary:        A composable build system for OCaml
 
 # Dune itself is MIT.  Some bundled libraries have a different license:
@@ -206,6 +206,9 @@ cp -ar README.md CHANGES.md MIGRATION.md doc/_build/* %{buildroot}%{_pkgdocdir}/
 %{_emacs_sitelispdir}/dune*
 
 %changelog
+* Thu Jul 28 2022 houmingyong <houmingyong@huawei.com> - 2.9.1-2
+- update to 2.9.1-2
+
 * Mon Apr 18 2022 wangkai <wangkai385@h-partners.com> - 2.9.1-1
 - update to 2.9.1