diff --git a/kunitconversion.spec b/kunitconversion.spec
index b86262e..9bc2f5f 100644
--- a/kunitconversion.spec
+++ b/kunitconversion.spec
@@ -1,6 +1,6 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          kunitconversion
-Version:       5.41.0
+Version:       5.42.0
 Release:       1mamba
 Summary:       Converting physical units
 Group:         System/Libraries
@@ -79,6 +79,9 @@ This package contains libraries and header files for developing applications tha
 %doc README.md
 
 %changelog
+* Thu Jan 18 2018 Automatic Build System <autodist@mambasoft.it> 5.42.0-1mamba
+- automatic version update by autodist
+
 * Sat Dec 23 2017 Automatic Build System <autodist@mambasoft.it> 5.41.0-1mamba
 - automatic version update by autodist