diff --git a/ostree.spec b/ostree.spec
index 9babf2d..2853473 100644
--- a/ostree.spec
+++ b/ostree.spec
@@ -1,5 +1,5 @@
 Name:          ostree
-Version:       2021.4
+Version:       2021.5
 Release:       1mamba
 Summary:       Operating system and container binary deployment and upgrades
 Group:         System/Management
@@ -11,7 +11,6 @@ URL:           https://ostree.readthedocs.io/en/latest/
 Source:        https://github.com/ostreedev/ostree.git/v%{version}/ostree-%{version}.tar.bz2
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
-#libdl.so.2()(64bit): /usr/lib64/libdl.so: file not owned by any package
 BuildRequires: glibc-devel
 BuildRequires: libacl-devel
 BuildRequires: libarchive-devel
@@ -124,6 +123,9 @@ NOCONFIGURE=1 ./autogen.sh
 %doc README.md TODO
 
 %changelog
+* Fri Oct 08 2021 Automatic Build System <autodist@mambasoft.it> 2021.5-1mamba
+- automatic version update by autodist
+
 * Sun Sep 12 2021 Automatic Build System <autodist@mambasoft.it> 2021.4-1mamba
 - automatic version update by autodist