diff --git a/libjpeg-turbo.spec b/libjpeg-turbo.spec
index c78c8f1..15b8201 100644
--- a/libjpeg-turbo.spec
+++ b/libjpeg-turbo.spec
@@ -1,5 +1,5 @@
 Name:          libjpeg-turbo
-Version:       1.5.2
+Version:       1.5.3
 Release:       1mamba
 Summary:       A MMX/SSE2 accelerated library for manipulating JPEG image files
 Group:         System/Libraries
@@ -260,6 +260,9 @@ cp -a lib32/%{_prefix}/lib %{buildroot}%{_prefix}/
 %endif
 
 %changelog
+* Thu Dec 21 2017 Automatic Build System <autodist@mambasoft.it> 1.5.3-1mamba
+- automatic version update by autodist
+
 * Sun Aug 06 2017 Automatic Build System <autodist@mambasoft.it> 1.5.2-1mamba
 - automatic version update by autodist