diff --git a/libnss_nis.spec b/libnss_nis.spec
index 38110c6..a2efb95 100644
--- a/libnss_nis.spec
+++ b/libnss_nis.spec
@@ -1,5 +1,5 @@
 Name:          libnss_nis
-Version:       3.0
+Version:       3.1
 Release:       1mamba
 Summary:       NSS module for glibc, to provide NIS support for glibc
 Group:         System/Libraries
@@ -62,6 +62,9 @@ This package contains libraries and header files for developing applications tha
 %doc ChangeLog NEWS README
 
 %changelog
+* Mon Aug 05 2019 Automatic Build System <autodist@mambasoft.it> 3.1-1mamba
+- automatic version update by autodist
+
 * Sun Jul 29 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 3.0-1mamba
 - update to 3.0