diff --git a/libupnp.spec b/libupnp.spec
index 078ea5c..aaad104 100644
--- a/libupnp.spec
+++ b/libupnp.spec
@@ -1,5 +1,5 @@
 Name:          libupnp
-Version:       1.6.20
+Version:       1.6.21
 Release:       1mamba
 Summary:       Universal Plug and Play (UPnP) SDK
 Group:         System/Libraries
@@ -63,6 +63,9 @@ you will need to install %{name}-devel.
 %{_libdir}/pkgconfig/libupnp.pc
 
 %changelog
+* Sun Mar 05 2017 Automatic Build System <autodist@mambasoft.it> 1.6.21-1mamba
+- automatic version update by autodist
+
 * Mon Aug 08 2016 Automatic Build System <autodist@mambasoft.it> 1.6.20-1mamba
 - automatic version update by autodist