diff --git a/ocaml-cppo.spec b/ocaml-cppo.spec
index baa4648..33d15dd 100644
--- a/ocaml-cppo.spec
+++ b/ocaml-cppo.spec
@@ -1,6 +1,6 @@
 Name:          ocaml-cppo
-Version:       1.6.7
-Release:       1mamba
+Version:       1.6.8
+Release:       2mamba
 Summary:       C-style preprocessor for OCaml
 Group:         System/Libraries/OCaml
 Vendor:        openmamba
@@ -11,13 +11,11 @@ Source:        https://github.com/ocaml-community/cppo.git/v%{version}/cppo-%{ve
 License:       MIT
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: ldconfig
-BuildRequires: ocaml-runtime
+BuildRequires: ocaml
 BuildRequires: ocamlbuild
 ## AUTOBUILDREQ-END
-BuildRequires: ocaml
+BuildRequires: ocamlbuild  >= 0.14.1
 BuildRequires: dune
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 C-style preprocessor for OCaml.
@@ -49,5 +47,11 @@ rm -rf %{buildroot}%{_prefix}/doc
 %doc README.md
 
 %changelog
+* Sun Feb 13 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 1.6.8-2mamba
+- rebuilt with ocamlbuild 0.14.1
+
+* Sat Oct 02 2021 Automatic Build System <autodist@mambasoft.it> 1.6.8-1mamba
+- automatic version update by autodist
+
 * Sat Jan 23 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.6.7-1mamba
 - package created using the webbuild interface