diff --git a/kunitconversion.spec b/kunitconversion.spec
index a0aa029..f27630d 100644
--- a/kunitconversion.spec
+++ b/kunitconversion.spec
@@ -1,6 +1,6 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          kunitconversion
-Version:       5.80.0
+Version:       5.81.0
 Release:       1mamba
 Summary:       Converting physical units
 Group:         System/Libraries
@@ -78,6 +78,9 @@ This package contains libraries and header files for developing applications tha
 %doc README.md
 
 %changelog
+* Sat Apr 10 2021 Automatic Build System <autodist@mambasoft.it> 5.81.0-1mamba
+- automatic version update by autodist
+
 * Sun Mar 14 2021 Automatic Build System <autodist@mambasoft.it> 5.80.0-1mamba
 - automatic version update by autodist