diff --git a/lsof.spec b/lsof.spec
index 91fa3fd..a2002ac 100644
--- a/lsof.spec
+++ b/lsof.spec
@@ -1,5 +1,5 @@
 Name:         lsof
-Version:      4.90
+Version:      4.91
 Release:      1mamba
 Summary:      Lists open files for running UNIX processes
 Group:        System/Tools
@@ -73,6 +73,9 @@ done
 %doc %{name}_docs/*
 
 %changelog
+* Thu Apr 05 2018 Automatic Build System <autodist@mambasoft.it> 4.91-1mamba
+- automatic version update by autodist
+
 * Wed Mar 21 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 4.90-1mamba
 - update to 4.90