diff --git a/ffmpegthumbs.spec b/ffmpegthumbs.spec
index b94ed81..0a72670 100644
--- a/ffmpegthumbs.spec
+++ b/ffmpegthumbs.spec
@@ -1,5 +1,5 @@
 Name:          ffmpegthumbs
-Version:       17.12.1
+Version:       17.12.3
 Release:       1mamba
 Summary:       A lightweight video thumbnailer that can be used by file managers
 Group:         Graphical Desktop/Applications/Multimedia
@@ -60,6 +60,12 @@ exit 0
 %doc COPYING
 
 %changelog
+* Thu Mar 08 2018 Automatic Build System <autodist@mambasoft.it> 17.12.3-1mamba
+- automatic version update by autodist
+
+* Fri Feb 09 2018 Automatic Build System <autodist@mambasoft.it> 17.12.2-1mamba
+- automatic version update by autodist
+
 * Thu Jan 11 2018 Automatic Build System <autodist@mambasoft.it> 17.12.1-1mamba
 - automatic version update by autodist