diff --git a/kalzium.spec b/kalzium.spec
index 508b6e6..77274a9 100644
--- a/kalzium.spec
+++ b/kalzium.spec
@@ -1,5 +1,5 @@
 Name:          kalzium
-Version:       21.12.2
+Version:       21.12.3
 Release:       1mamba
 Summary:       Periodic table of elements
 Group:         Graphical Desktop/Applications/Educational
@@ -130,6 +130,9 @@ exit 0
 %{_kde5_libdir}/libscience.so
 
 %changelog
+* Thu Mar 03 2022 Automatic Build System <autodist@mambasoft.it> 21.12.3-1mamba
+- automatic version update by autodist
+
 * Fri Feb 04 2022 Automatic Build System <autodist@mambasoft.it> 21.12.2-1mamba
 - automatic version update by autodist