diff --git a/ocaml-topkg.spec b/ocaml-topkg.spec
index 07c7d7f..0e645b2 100644
--- a/ocaml-topkg.spec
+++ b/ocaml-topkg.spec
@@ -1,22 +1,22 @@
 Name:          ocaml-topkg
-Version:       1.0.3
+Version:       1.0.4
 Release:       1mamba
 Summary:       The transitory OCaml software packager
 Group:         System/Libraries/OCaml
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://erratique.ch/software/topkg
+URL:           https://erratique.ch/software/topkg
 Source:        https://github.com/dbuenzli/topkg.git/v%{version}/topkg-%{version}.tar.bz2
 License:       ISC License
 ## AUTOBUILDREQ-BEGIN
+BuildRequires: ocaml
 ## AUTOBUILDREQ-END
 BuildRequires: ocaml >= 4.11.1
 BuildRequires: opam
 BuildRequires: ocaml-result >= 1.4-2mamba
 Requires:      ocaml-result
 Requires:      ocaml
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 The transitory OCaml software packager.
@@ -49,6 +49,9 @@ mv %{buildroot}%{_docdir}/topkg/LICENSE.md %{buildroot}%{_datadir}/licenses/ocam
 %{_datadir}/licenses/ocaml-topkg/LICENSE.md
 
 %changelog
+* Mon Oct 11 2021 Automatic Build System <autodist@mambasoft.it> 1.0.4-1mamba
+- automatic version update by autodist
+
 * Thu Jan 21 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.0.3-1mamba
 - update to 1.0.3