diff --git a/ocaml-taglib.spec b/ocaml-taglib.spec
index def48bd..e190d2b 100644
--- a/ocaml-taglib.spec
+++ b/ocaml-taglib.spec
@@ -2,7 +2,7 @@
 
 Name:          ocaml-taglib
 Version:       0.3.10
-Release:       1mamba
+Release:       2mamba
 Summary:       OCaml bindings to taglib
 Group:         Development/Bindings
 Vendor:        openmamba
@@ -18,7 +18,9 @@ BuildRequires: libstdc++6-devel
 BuildRequires: libtag-devel
 BuildRequires: libz-devel
 BuildRequires: ocaml
+BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
+BuildRequires: ocaml >= 4.14.1
 BuildRequires: dune
 BuildRequires: libtag-devel >= 1.9.1
 
@@ -42,7 +44,7 @@ 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
 
@@ -65,6 +67,9 @@ rm -rf %{buildroot}/usr/doc
 %doc CHANGES README.md
 
 %changelog
+* Thu Jul 06 2023 Sdk Build System <sdk@mambasoft.it> 0.3.10-2mamba
+- rebuilt with ocaml 4.14.1
+
 * Sun Oct 09 2022 Automatic Build System <autodist@mambasoft.it> 0.3.10-1mamba
 - automatic version update by autodist