diff --git a/libmdds.spec b/libmdds.spec
index 4724e4f..8b7a4dc 100644
--- a/libmdds.spec
+++ b/libmdds.spec
@@ -2,7 +2,7 @@
 %define with_perf_tests 0
 %define apiver %(echo %version|cut -d. -f1-2)
 Name:          libmdds
-Version:       1.2.2
+Version:       1.2.3
 Release:       1mamba
 Summary:       A collection of multi-dimensional data structure and indexing algorithm (mdds)
 Group:         System/Libraries
@@ -88,6 +88,9 @@ rm -rf %{buildroot}%{_docdir}
 %doc AUTHORS VERSION
 
 %changelog
+* Mon Aug 07 2017 Automatic Build System <autodist@mambasoft.it> 1.2.3-1mamba
+- automatic version update by autodist
+
 * Mon Sep 12 2016 Automatic Build System <autodist@mambasoft.it> 1.2.2-1mamba
 - automatic version update by autodist