diff --git a/dune-2.4.0.tar.gz b/dune-2.4.0.tar.gz
deleted file mode 100644
index 3e46c90d0fb0bcdd1393084bb2642a23ee1eb923..0000000000000000000000000000000000000000
Binary files a/dune-2.4.0.tar.gz and /dev/null differ
diff --git a/dune-2.9.1.tar.gz b/dune-2.9.1.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..cf05bc6f19018ed05892ba7fcfd8d5de53caa1e1
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diff --git a/ocaml-dune.spec b/ocaml-dune.spec
index 707d2207dc86e6f3fb380ccce5badcdd33fbff10..4fdf75e78f19fd5a606c4c30b55e46b719a3b4e1 100644
--- a/ocaml-dune.spec
+++ b/ocaml-dune.spec
@@ -5,7 +5,7 @@
 %bcond_with bootstrap
 
 Name:           ocaml-%{libname}
-Version:        2.4.0
+Version:        2.9.1
 Release:        1%{?dist}
 Summary:        A composable build system for OCaml
 
@@ -188,5 +188,8 @@ cp -ar README.md CHANGES.md MIGRATION.md doc/_build/* %{buildroot}%{_pkgdocdir}/
 %{_emacs_sitelispdir}/dune*
 
 %changelog
+* Fri Dec 17 2021 zhangguangzhi<zhangguangzhi3@huawei.com> - 2.9.1-1
+- update version 2.9.1
+
 * Thu Nov 12 2020 wanghongzhe<wanghongzhe@huawei.com> - 2.4.0-1
 - Package Init