diff --git a/ocaml-xmlm.spec b/ocaml-xmlm.spec
index 4ad190d..89fc828 100644
--- a/ocaml-xmlm.spec
+++ b/ocaml-xmlm.spec
@@ -2,7 +2,7 @@
 
 Name:          ocaml-xmlm
 Version:       1.4.0
-Release:       1mamba
+Release:       2mamba
 Summary:       An OCaml module providing streaming XML input/output
 Group:         System/Libraries
 Vendor:        openmamba
@@ -14,9 +14,10 @@ License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: ocaml
+BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
+BuildRequires: ocaml >= 4.14.1
 BuildRequires: opam
-BuildRequires: ocaml
 BuildRequires: ocaml-findlib
 
 %description
@@ -68,6 +69,9 @@ opam-installer \
 %{_libdir}/ocaml/%{ocamlpck}/*.mli
 
 %changelog
+* Thu Jul 06 2023 Sdk Build System <sdk@mambasoft.it> 1.4.0-2mamba
+- rebuilt with ocaml 4.14.1
+
 * Fri Feb 11 2022 Automatic Build System <autodist@mambasoft.it> 1.4.0-1mamba
 - automatic version update by autodist