diff --git a/kdegraphics-thumbnailers.spec b/kdegraphics-thumbnailers.spec
index c1a7719..d0bfc02 100644
--- a/kdegraphics-thumbnailers.spec
+++ b/kdegraphics-thumbnailers.spec
@@ -1,5 +1,5 @@
 Name:          kdegraphics-thumbnailers
-Version:       21.12.0
+Version:       21.12.1
 Release:       1mamba
 Summary:       Thumbnailers for various graphic types
 Group:         Graphical Desktop/Applications/Graphics
@@ -70,6 +70,9 @@ exit 0
 %doc COPYING COPYING.LIB
 
 %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