diff --git a/bison.spec b/bison.spec
index af0a9ad..2f6d64b 100644
--- a/bison.spec
+++ b/bison.spec
@@ -1,5 +1,5 @@
 Name:          bison
-Version:       3.8
+Version:       3.8.1
 Release:       1mamba
 Summary:       A GNU general-purpose parser generator
 Group:         Applications/Development
@@ -80,6 +80,9 @@ cat %{name}-runtime.lang %{name}-gnulib.lang >> %{name}.lang
 # ChangeLog NEWS README THANKS TODO
 
 %changelog
+* Sat Sep 11 2021 Automatic Build System <autodist@mambasoft.it> 3.8.1-1mamba
+- automatic version update by autodist
+
 * Wed Sep 08 2021 Automatic Build System <autodist@mambasoft.it> 3.8-1mamba
 - automatic version update by autodist