diff --git a/zsh.spec b/zsh.spec
index b26100a..7549d47 100644
--- a/zsh.spec
+++ b/zsh.spec
@@ -1,5 +1,5 @@
 Name:          zsh
-Version:       5.5
+Version:       5.5.1
 Release:       1mamba
 Summary:       A shell designed for interactive us
 Group:         Applications/Shells
@@ -62,6 +62,9 @@ Zsh is a shell designed for interactive use, although it is also a powerful scri
 #% doc ChangeLog NEWS README
 
 %changelog
+* Thu Apr 19 2018 Automatic Build System <autodist@mambasoft.it> 5.5.1-1mamba
+- automatic version update by autodist
+
 * Fri Apr 13 2018 Automatic Build System <autodist@mambasoft.it> 5.5-1mamba
 - automatic version update by autodist