diff --git a/nbd.spec b/nbd.spec
index 4e501b5..d17e938 100644
--- a/nbd.spec
+++ b/nbd.spec
@@ -1,5 +1,5 @@
 Name:          nbd
-Version:       3.15.2
+Version:       3.15.3
 Release:       1mamba
 Summary:       Tools for the Linux Kernel's network block device
 Group:         System/Tools
@@ -47,6 +47,9 @@ Tools for the Linux Kernel's network block device, allowing you to use remote bl
 %doc COPYING
 
 %changelog
+* Mon Aug 07 2017 Automatic Build System <autodist@mambasoft.it> 3.15.3-1mamba
+- automatic version update by autodist
+
 * Fri Mar 03 2017 Automatic Build System <autodist@mambasoft.it> 3.15.2-1mamba
 - automatic version update by autodist