diff --git a/python-xlib.spec b/python-xlib.spec
index b90bd25..5e8677a 100644
--- a/python-xlib.spec
+++ b/python-xlib.spec
@@ -1,5 +1,5 @@
 Name:          python-xlib
-Version:       0.20
+Version:       0.21
 Release:       1mamba
 Summary:       X client library for Python
 Group:         System/Libraries/Python
@@ -94,6 +94,9 @@ chmod a-x examples/*.py
 %doc examples doc/html
 
 %changelog
+* Tue Dec 19 2017 Automatic Build System <autodist@mambasoft.it> 0.21-1mamba
+- automatic update by autodist
+
 * Fri Sep 08 2017 Automatic Build System <autodist@mambasoft.it> 0.20-1mamba
 - automatic version update by autodist