diff --git a/kalzium.spec b/kalzium.spec
index c8b3399..94dc0fc 100644
--- a/kalzium.spec
+++ b/kalzium.spec
@@ -1,5 +1,5 @@
 Name:          kalzium
-Version:       21.12.0
+Version:       21.12.1
 Release:       1mamba
 Summary:       Periodic table of elements
 Group:         Graphical Desktop/Applications/Educational
@@ -130,6 +130,9 @@ exit 0
 %{_kde5_libdir}/libscience.so
 
 %changelog
+* Thu Jan 06 2022 Automatic Build System <autodist@mambasoft.it> 21.12.1-1mamba
+- automatic version update by autodist
+
 * Sat Dec 11 2021 Automatic Build System <autodist@mambasoft.it> 21.12.0-1mamba
 - automatic version update by autodist