diff --git a/acpica.spec b/acpica.spec
index abaef96..3a21f01 100644
--- a/acpica.spec
+++ b/acpica.spec
@@ -1,5 +1,5 @@
 Name:          acpica
-Version:       20181031
+Version:       20181213
 Release:       1mamba
 Summary:       Advanced Configuration & Power Interface Component Architecture
 Group:         System/Kernel and Hardware
@@ -52,6 +52,9 @@ cp %{S:2} %{S:3} .
 %doc source/LICENSE
 
 %changelog
+* Mon Dec 17 2018 Automatic Build System <autodist@mambasoft.it> 20181213-1mamba
+- automatic version update by autodist
+
 * Sat Nov 03 2018 Automatic Build System <autodist@mambasoft.it> 20181031-1mamba
 - automatic version update by autodist