diff --git a/ocaml-xmlm.spec b/ocaml-xmlm.spec
index c002821..77b49c9 100644
--- a/ocaml-xmlm.spec
+++ b/ocaml-xmlm.spec
@@ -2,7 +2,7 @@
 
 Name:          ocaml-xmlm
 Version:       1.3.0
-Release:       1mamba
+Release:       2mamba
 Summary:       An OCaml module providing streaming XML input/output
 Group:         System/Libraries
 Vendor:        openmamba
@@ -13,11 +13,11 @@ Source:        http://erratique.ch/software/xmlm/releases/xmlm-%{version}.tbz
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: ocaml
 ## AUTOBUILDREQ-END
 BuildRequires: opam
 BuildRequires: ocaml
 BuildRequires: ocaml-findlib
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Xmlm is an OCaml module providing streaming XML input/output.
@@ -68,6 +68,9 @@ opam-installer \
 %{_libdir}/ocaml/%{ocamlpck}/*.mli
 
 %changelog
+* Sun Jan 30 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 1.3.0-2mamba
+- rebuilt with ocaml 4.11.1
+
 * Fri Feb 19 2021 Automatic Build System <autodist@mambasoft.it> 1.3.0-1mamba
 - automatic version update by autodist