diff --git a/btrfs-progs.spec b/btrfs-progs.spec
index 5c3129d..316e306 100644
--- a/btrfs-progs.spec
+++ b/btrfs-progs.spec
@@ -1,5 +1,5 @@
 Name:          btrfs-progs
-Version:       4.2
+Version:       4.2.1
 Release:       1mamba
 Summary:       Userspace utilities for btrfs filesystem
 Group:         System/Kernel and Hardware
@@ -110,6 +110,9 @@ This package contains libraries and header files for developing applications tha
 %{_libdir}/libbtrfs.so
 
 %changelog
+* Mon Sep 28 2015 Automatic Build System <autodist@mambasoft.it> 4.2.1-1mamba
+- automatic version update by autodist
+
 * Fri Sep 11 2015 Automatic Build System <autodist@mambasoft.it> 4.2-1mamba
 - automatic version update by autodist