diff --git a/kdesdk-thumbnailers.spec b/kdesdk-thumbnailers.spec
index 5b122f0..4e40eff 100644
--- a/kdesdk-thumbnailers.spec
+++ b/kdesdk-thumbnailers.spec
@@ -1,5 +1,5 @@
 Name:          kdesdk-thumbnailers
-Version:       17.08.3
+Version:       17.12.0
 Release:       1mamba
 Summary:       A plugin to allow KDE software to create thumbnails for Gettext translations files (po)
 Group:         Graphical Desktop/Applications/Development
@@ -52,6 +52,9 @@ This package is part of the KDE Software Development Kit module.
 %doc COPYING
 
 %changelog
+* Wed Dec 20 2017 Automatic Build System <autodist@mambasoft.it> 17.12.0-1mamba
+- automatic version update by autodist
+
 * Fri Nov 10 2017 Automatic Build System <autodist@mambasoft.it> 17.08.3-1mamba
 - automatic version update by autodist