diff --git a/knetwalk.spec b/knetwalk.spec
index 20e7c91..13f6a80 100644
--- a/knetwalk.spec
+++ b/knetwalk.spec
@@ -1,5 +1,5 @@
 Name:          knetwalk
-Version:       21.12.0
+Version:       21.12.1
 Release:       1mamba
 Summary:       Network Construction Game
 Group:         Graphical Desktop/Applications/Games
@@ -82,6 +82,9 @@ exit 0
 %doc AUTHORS COPYING COPYING.DOC
 
 %changelog
+* Fri Jan 07 2022 Automatic Build System <autodist@mambasoft.it> 21.12.1-1mamba
+- automatic version update by autodist
+
 * Thu Dec 09 2021 Automatic Build System <autodist@mambasoft.it> 21.12.0-1mamba
 - automatic version update by autodist