diff --git a/ocaml-ounit.spec b/ocaml-ounit.spec
index 5b6fc0c..6651993 100644
--- a/ocaml-ounit.spec
+++ b/ocaml-ounit.spec
@@ -1,7 +1,7 @@
 %define ocamlpck  ounit2
 
 Name:          ocaml-ounit
-Version:       2.2.6
+Version:       2.2.7
 Release:       1mamba
 Summary:       Ocaml Unit testing framework
 Group:         System/Libraries/OCaml
@@ -15,12 +15,15 @@ License:       MIT
 BuildRequires: glibc-devel
 BuildRequires: ocaml
 BuildRequires: ocaml-lwt-devel
-BuildRequires: ocaml-result
+BuildRequires: ocaml-runtime
 BuildRequires: ocaml-seq-devel
 ## AUTOBUILDREQ-END
-BuildRequires: ocaml
-BuildRequires: ocaml-camlp4-devel
+BuildRequires: ocaml >= 4.14.1
+BuildRequires: camlp4
 BuildRequires: ocaml-findlib
+BuildRequires: ocaml-lwt-devel >= 5.6.1-2mamba
+BuildRequires: ocaml-seq-devel >= 0.2.2-2mamba
+BuildRequires: ocaml-result >= 1.5-3mamba
 Requires:      ocaml-runtime
 
 %description
@@ -44,7 +47,7 @@ dune build --release --verbose
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-DESTDIR="%{buildroot}" dune install --prefix '%{_prefix}' --libdir '%{_lib}/ocaml' --release --verbose
+DESTDIR="%{buildroot}" dune install --prefix '%{_prefix}' --libdir '%{_libdir}/ocaml' --release --verbose
 
 rm -rf %{buildroot}/usr/doc
 
@@ -75,6 +78,10 @@ rm -rf %{buildroot}/usr/doc
 %doc CHANGES.md README.md
 
 %changelog
+* Thu Jul 06 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2.2.7-1mamba
+- update to 2.2.7
+- rebuilt with ocaml 4.14.1
+
 * Sat Feb 12 2022 Automatic Build System <autodist@mambasoft.it> 2.2.6-1mamba
 - automatic version update by autodist