diff --git a/calibre.spec b/calibre.spec
index e34bf7b..9d0eb3e 100644
--- a/calibre.spec
+++ b/calibre.spec
@@ -1,6 +1,6 @@
 Name:          calibre
-Version:       4.1.0
-Release:       2mamba
+Version:       4.2.0
+Release:       1mamba
 Summary:       A free and open source e-book library management application
 Group:         Graphical Desktop/Applications/Multimedia
 Vendor:        openmamba
@@ -185,6 +185,9 @@ CFLAGS="%{optflags}" %{__python27} setup.py resources
 %{python27_sitelib}/init_calibre.py
 
 %changelog
+* Sun Oct 20 2019 Automatic Build System <autodist@mambasoft.it> 4.2.0-1mamba
+- automatic version update by autodist
+
 * Wed Oct 09 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 4.1.0-2mamba
 - require pyqtwebengine