diff --git a/kunitconversion.spec b/kunitconversion.spec
index ea113f1..0ccd108 100644
--- a/kunitconversion.spec
+++ b/kunitconversion.spec
@@ -1,6 +1,6 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          kunitconversion
-Version:       5.65.0
+Version:       5.66.0
 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
+* Tue Jan 14 2020 Automatic Build System <autodist@mambasoft.it> 5.66.0-1mamba
+- automatic version update by autodist
+
 * Mon Dec 23 2019 Automatic Build System <autodist@mambasoft.it> 5.65.0-1mamba
 - automatic version update by autodist