diff --git a/cppo-1.6.9.tar.gz b/cppo-1.6.9.tar.gz
new file mode 100644
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diff --git a/ocaml-cppo.spec b/ocaml-cppo.spec
index 3f06779..80d1d03 100644
--- a/ocaml-cppo.spec
+++ b/ocaml-cppo.spec
@@ -1,32 +1,36 @@
 Name:           ocaml-cppo
-Version:        1.6.6
+Version:        1.6.9
 Release:        1
 Summary:        An equivalent of the C preprocessor for OCaml programs
 License:        BSD
 URL:            https://github.com/ocaml-community/cppo
-Source0:        https://github.com/ocaml-community/cppo/archive/v%{version}.tar.gz
-BuildRequires:  make ocaml ocaml-dune ocaml-ocamlbuild ocaml-findlib
+Source0:        https://github.com/ocaml-community/cppo/archive/v%{version}/cppo-%{version}.tar.gz
+BuildRequires:  ocaml ocaml-dune ocaml-ocamlbuild ocaml-findlib
 
 %description
 Cppo is an equivalent of the C preprocessor for OCaml programs.It allows the definition of simple macros and file inclusion.
 
 %prep
 %autosetup -n cppo-%{version} -p1
+sed -i 's/[%]{version:cppo}/%{version}/g' src/dune
 
 %build
-%make_build
+dune build %{?_smp_mflags} --verbose --profile release
 
 %install
-%make_install
+dune install --destdir=%{buildroot}
 
 %files
 %license LICENSE.md
-%doc Changes README.md
+%doc Changes.md README.md
 %{_bindir}/cppo
 %{_libdir}/ocaml/cppo/*
 %{_libdir}/ocaml/cppo_ocamlbuild/*
 %exclude /usr/doc/*cppo*/*
 
 %changelog
+* Wed Sep 20 2023 liyanan <thistleslyn@163.com> - 1.6.9-1
+- upgrade to 1.6.9
+
 * Mon Jul 26 2021 wang_yue111 <648774160@qq.com> - 1.6.6-1
 - Package init 
diff --git a/v1.6.6.tar.gz b/v1.6.6.tar.gz
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