diff --git a/nagios-plugins-linux.spec b/nagios-plugins-linux.spec
index a12132d..b0e6e08 100644
--- a/nagios-plugins-linux.spec
+++ b/nagios-plugins-linux.spec
@@ -1,6 +1,6 @@
 Name:          nagios-plugins-linux
-Version:       12
-Release:       2mamba
+Version:       13
+Release:       1mamba
 Summary:       Nagios plugins for Linux
 Group:         Network/Monitoring
 Vendor:        openmamba
@@ -236,6 +236,9 @@ This Nagios plugin displays the number of users that are currently logged on.
 %{_libdir}/nagios/plugins/check_users
 
 %changelog
+* Tue Jul 22 2014 Davide Madrisan <davide.madrisan@gmail.com> 13-1mamba
+- update to 13
+
 * Thu Jul 10 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 12-2mamba
 - increare release to update 12-1mamba version release with old source from 10