diff --git a/grep.spec b/grep.spec
index ee426fd..e5537f7 100644
--- a/grep.spec
+++ b/grep.spec
@@ -1,5 +1,5 @@
 Name:          grep
-Version:       3.0
+Version:       3.1
 Release:       1mamba
 Summary:       The GNU versions of grep pattern matching utilities
 Group:         Applications/File
@@ -67,6 +67,9 @@ exit 0
 #%doc ChangeLog NEWS README TODO
 
 %changelog
+* Wed Jul 05 2017 Automatic Build System <autodist@mambasoft.it> 3.1-1mamba
+- automatic version update by autodist
+
 * Sun Feb 12 2017 Automatic Build System <autodist@mambasoft.it> 3.0-1mamba
 - automatic version update by autodist