diff --git a/at.spec b/at.spec
index 7915ee3..ef63376 100644
--- a/at.spec
+++ b/at.spec
@@ -2,7 +2,7 @@
 %define atdaemon_userid  65022
 
 Name:          at
-Version:       3.1.16
+Version:       3.1.20
 Release:       1mamba
 Summary:       Job spooling tools
 Group:         System/Servers
@@ -163,6 +163,9 @@ exit 0
 %{_docdir}/at
 
 %changelog
+* Fri Aug 12 2016 Automatic Build System <autodist@mambasoft.it> 3.1.20-1mamba
+- automatic update by autodist
+
 * Sun Oct 12 2014 Automatic Build System <autodist@mambasoft.it> 3.1.16-1mamba
 - automatic update by autodist