diff --git a/bind.spec b/bind.spec
index f630427..3ca6877 100644
--- a/bind.spec
+++ b/bind.spec
@@ -6,7 +6,7 @@
 %define MAJver %(echo %version | cut -d. -f 1-2)
 
 Name:          bind
-Version:       9.18.20
+Version:       9.18.21
 Release:       1mamba
 Summary:       A DNS (Domain Name System) server
 Group:         System/Servers
@@ -340,6 +340,9 @@ exit 0
 #%{_mandir}/man1/dnssec-keymgr.1*
 
 %changelog
+* Wed Dec 20 2023 Automatic Build System <autodist@mambasoft.it> 9.18.21-1mamba
+- automatic version update by autodist
+
 * Wed Nov 15 2023 Automatic Build System <autodist@mambasoft.it> 9.18.20-1mamba
 - automatic version update by autodist