diff --git a/ocaml-opus.spec b/ocaml-opus.spec
index dbaf79c..8da8d4c 100644
--- a/ocaml-opus.spec
+++ b/ocaml-opus.spec
@@ -1,8 +1,8 @@
 %define ocamlpck  opus
 
 Name:          ocaml-opus
-Version:       0.2.1
-Release:       1mamba
+Version:       0.2.2
+Release:       2mamba
 Summary:       OCaml bindings for Opus audio codec
 Group:         System/Libraries/OCaml
 Vendor:        openmamba
@@ -17,9 +17,11 @@ BuildRequires: libogg-devel
 BuildRequires: libopus-devel
 BuildRequires: ocaml
 BuildRequires: ocaml-ogg-devel
+BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
+BuildRequires: ocaml-ogg-devel >= 0.7.4
+BuildRequires: ocaml >= 4.14.1
 BuildRequires: dune
-BuildRequires: ocaml
 BuildRequires: ocaml-findlib
 
 %description
@@ -43,7 +45,7 @@ dune build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-DESTDIR=%{buildroot} dune install --prefix "/usr" --libdir "%{_lib}/ocaml"
+DESTDIR=%{buildroot} dune install --prefix "/usr" --libdir "%{_libdir}/ocaml"
 
 rm -rf %{buildroot}/usr/doc
 
@@ -78,5 +80,14 @@ rm -rf %{buildroot}/usr/doc
 %doc CHANGES* README.md
 
 %changelog
+* Tue Jul 18 2023 Sdk Build System <sdk@mambasoft.it> 0.2.2-2mamba
+- rebuilt with ocaml-ogg 0.7.4
+
+* Fri Jul 07 2023 Automatic Build System <autodist@mambasoft.it> 0.2.2-1mamba
+- automatic version update by autodist
+
+* Fri Jul 07 2023 Sdk Build System <sdk@mambasoft.it> 0.2.1-2mamba
+- rebuilt with ocaml 4.14.1
+
 * Mon Feb 07 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 0.2.1-1mamba
 - package created using the webbuild interface