diff --git a/ocaml-labltk.spec b/ocaml-labltk.spec
index c1294ad..450c9d8 100644
--- a/ocaml-labltk.spec
+++ b/ocaml-labltk.spec
@@ -1,5 +1,5 @@
 Name:          ocaml-labltk
-Version:       8.06.7
+Version:       8.06.9
 Release:       1mamba
 Summary:       An OCaml interface to the Tcl/Tk GUI framework
 Group:         System/Libraries
@@ -16,7 +16,7 @@ BuildRequires: libtcl-devel
 BuildRequires: libtk-devel
 BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
-BuildRequires: ocaml >= 4.09.0
+BuildRequires: ocaml >= 4.11.1
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -86,6 +86,9 @@ rm -f %{buildroot}%{_libdir}/ocaml/labltk/*.ml
 %doc README.md README.mlTk
 
 %changelog
+* Thu Jan 21 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 8.06.9-1mamba
+- update to 8.06.9
+
 * Sat Jan 04 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 8.06.7-1mamba
 - update to 8.06.7