diff --git a/attica.spec b/attica.spec
index b59bfed..403758d 100644
--- a/attica.spec
+++ b/attica.spec
@@ -1,5 +1,5 @@
 Name:          attica
-Version:       5.17.0
+Version:       5.21.0
 Release:       1mamba
 Summary:       A Qt library that implements the Open Collaboration Services API
 Group:         System/Libraries
@@ -81,6 +81,9 @@ This package contains libraries and header files for developing applications tha
 %doc ChangeLog README.md
 
 %changelog
+* Fri May 06 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 5.21.0-1mamba
+- update to 5.21.0
+
 * Sat Dec 26 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 5.17.0-1mamba
 - update to 5.17.0