diff --git a/ocaml-magic.spec b/ocaml-magic.spec
index 87a4a2c..cae39b8 100644
--- a/ocaml-magic.spec
+++ b/ocaml-magic.spec
@@ -2,7 +2,7 @@
 
 Name:          ocaml-magic
 Version:       0.7.3
-Release:       1mamba
+Release:       2mamba
 Summary:       An OCaml binding to libmagic
 Group:         System/Libraries/OCaml
 Vendor:        openmamba
@@ -15,9 +15,10 @@ License:       LGPL
 BuildRequires: glibc-devel
 BuildRequires: libmagic-devel
 BuildRequires: ocaml
+BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
+BuildRequires: ocaml >= 4.14.1
 BuildRequires: dune
-BuildRequires: ocaml
 BuildRequires: ocaml-findlib
 
 %description
@@ -69,5 +70,8 @@ make install
 %doc README
 
 %changelog
+* Thu Jul 06 2023 Sdk Build System <sdk@mambasoft.it> 0.7.3-2mamba
+- rebuilt with ocaml 4.14.1
+
 * Fri Feb 11 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 0.7.3-1mamba
 - package created using the webbuild interface