diff --git a/dune.spec b/dune.spec
index b47f357..8656c5f 100644
--- a/dune.spec
+++ b/dune.spec
@@ -1,5 +1,5 @@
 Name:          dune
-Version:       2.8.2
+Version:       2.8.4
 Release:       1mamba
 Summary:       A composable build system for OCaml
 Group:         Development/Tools
@@ -14,7 +14,6 @@ BuildRequires: glibc-devel
 BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
 BuildRequires: ocaml >= 4.11.1
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 A composable build system for OCaml.
@@ -56,6 +55,9 @@ mv %{buildroot}%{_prefix}/doc %{buildroot}%{_datadir}
 %{_mandir}/man5/dune-config.5*
 
 %changelog
+* Tue Mar 09 2021 Automatic Build System <autodist@mambasoft.it> 2.8.4-1mamba
+- automatic version update by autodist
+
 * Thu Feb 04 2021 Automatic Build System <autodist@mambasoft.it> 2.8.2-1mamba
 - automatic version update by autodist