diff --git a/ocaml-camomile.spec b/ocaml-camomile.spec
index f5d8b47..00e64f9 100644
--- a/ocaml-camomile.spec
+++ b/ocaml-camomile.spec
@@ -1,7 +1,7 @@
 %define ocamlpck  camomile
 
 Name:          ocaml-camomile
-Version:       1.0.2
+Version:       2.0.0
 Release:       2mamba
 Summary:       a Unicode library for objective caml language
 Group:         System/Libraries
@@ -9,15 +9,19 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://github.com/yoriyuki/Camomile
-Source:        https://github.com/yoriyuki/Camomile.git/%{version}/Camomile-%{version}.tar.bz2
+Source:        https://github.com/ocaml-community/Camomile.git/v%{version}/Camomile-%{version}.tar.bz2
+#Source:        https://github.com/yoriyuki/Camomile.git/%{version}/Camomile-%{version}.tar.bz2
 Patch0:        ocaml-camomile-1.0.2-add-version.patch
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
+BuildRequires: dune
 BuildRequires: glibc-devel
 BuildRequires: ocaml
+BuildRequires: ocaml-camlp-streams-devel
+BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
+BuildRequires: ocaml >= 4.14.1
 BuildRequires: dune
-BuildRequires: ocaml
 BuildRequires: ocaml-findlib
 Requires:      %{name}-data = %{?epoch:%epoch:}%{version}-%{release}
 
@@ -29,6 +33,7 @@ The library is currently designed for Unicode Standard 3.2.
 %package data
 Group:         System/Libraries
 Summary:       Data files for %{name}
+Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description data
 This package contains the data files provided with %{name}.
@@ -45,31 +50,34 @@ This package contains libraries and signature files for developing applications
 
 %prep
 %setup -q -n Camomile-%{version}
-%patch0 -p1
+#%patch 0 -p1
 
 %build
-find . -name "*.mli" -exec sed -i 's,Pervasives.in_channel,Stdlib.in_channel,g' {} + 
-find . -name "*.mli" -exec sed -i 's,Pervasives.out_channel,Stdlib.out_channel,g' {} +
-find . -name "*.ml" -exec sed -i 's,Pervasives.in_channel,Stdlib.in_channel,g' {} +
-find . -name "*.ml" -exec sed -i 's,Pervasives.out_channel,Stdlib.out_channel,g' {} +
-find . -name "*.ml" -exec sed -i 's,Pervasives.compare,Stdlib.compare,g' {} +
+#find . -name "*.mli" -exec sed -i 's,Pervasives.in_channel,Stdlib.in_channel,g' {} + 
+#find . -name "*.mli" -exec sed -i 's,Pervasives.out_channel,Stdlib.out_channel,g' {} +
+#find . -name "*.ml" -exec sed -i 's,Pervasives.in_channel,Stdlib.in_channel,g' {} +
+#find . -name "*.ml" -exec sed -i 's,Pervasives.out_channel,Stdlib.out_channel,g' {} +
+#find . -name "*.ml" -exec sed -i 's,Pervasives.compare,Stdlib.compare,g' {} +
 dune build @install
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-mkdir -p %{buildroot}%{_libdir}/ocaml
-dune install \
-	--destdir="%{buildroot}" \
-	--libdir="%{_libdir}/ocaml"
+DESTDIR=%{buildroot} dune install --prefix "/usr" --libdir "%{_libdir}/ocaml"
+
+#mkdir -p %{buildroot}%{_libdir}/ocaml
+#dune install \
+#	--destdir="%{buildroot}" \
+#	--prefix=%{_prefix} \
+#	--libdir="%{_libdir}/ocaml"
 
 rm -rf %{buildroot}/usr/doc
 
-# Remove annotation files and sources.
-rm -Rf %{buildroot}%{_libdir}/ocaml/camomile/*.cmt*
-rm -Rf %{buildroot}%{_libdir}/ocaml/camomile/*.ml
+## Remove annotation files and sources.
+#rm -Rf %{buildroot}%{_libdir}/ocaml/camomile/*.cmt*
+#rm -Rf %{buildroot}%{_libdir}/ocaml/camomile/*.ml
 
 # Install the *.mli files by hand.	
-cp _build/install/default/lib/camomile/library/*.mli %{buildroot}%{_libdir}/ocaml/camomile/
+#cp _build/install/default/lib/camomile/library/*.mli %{buildroot}%{_libdir}/ocaml/camomile/
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -81,7 +89,7 @@ cp _build/install/default/lib/camomile/library/*.mli %{buildroot}%{_libdir}/ocam
 %exclude %{_libdir}/ocaml/%{ocamlpck}/*.a
 %exclude %{_libdir}/ocaml/%{ocamlpck}/*.cmx
 %exclude %{_libdir}/ocaml/%{ocamlpck}/*.cmxa
-%exclude %{_libdir}/ocaml/%{ocamlpck}/*.mli
+#%exclude %{_libdir}/ocaml/%{ocamlpck}/*.mli
 %doc LICENSE.md
 
 %files devel
@@ -89,7 +97,7 @@ cp _build/install/default/lib/camomile/library/*.mli %{buildroot}%{_libdir}/ocam
 %{_libdir}/ocaml/%{ocamlpck}/*.a
 %{_libdir}/ocaml/%{ocamlpck}/*.cmx
 %{_libdir}/ocaml/%{ocamlpck}/*.cmxa
-%{_libdir}/ocaml/%{ocamlpck}/*.mli
+#%{_libdir}/ocaml/%{ocamlpck}/*.mli
 
 %files data
 %defattr(-,root,root)
@@ -97,6 +105,13 @@ cp _build/install/default/lib/camomile/library/*.mli %{buildroot}%{_libdir}/ocam
 %{_datadir}/camomile/*
 
 %changelog
+* Sun Jul 16 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.0-2mamba
+- rebuilt
+
+* Thu Jul 06 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.0-1mamba
+- update to 2.0.0
+- rebuilt with ocaml 4.14.1
+
 * Thu Feb 03 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 1.0.2-2mamba
 - add version in dune-project to fix liquidsoap detection