diff --git a/tar.spec b/tar.spec
index 841f8bc..9625428 100644
--- a/tar.spec
+++ b/tar.spec
@@ -1,5 +1,5 @@
 Name:          tar
-Version:       1.30
+Version:       1.31
 Release:       1mamba
 Summary:       A GNU file archiving program
 Group:         Applications/Archiving
@@ -76,6 +76,9 @@ exit 0
 #ChangeLog COPYING NEWS README THANKS TODO
 
 %changelog
+* Thu Jan 03 2019 Automatic Build System <autodist@mambasoft.it> 1.31-1mamba
+- automatic version update by autodist
+
 * Mon Dec 18 2017 Automatic Build System <autodist@mambasoft.it> 1.30-1mamba
 - automatic update by autodist