diff --git a/swig.spec b/swig.spec
index 6a3b268..243d6d7 100644
--- a/swig.spec
+++ b/swig.spec
@@ -1,5 +1,5 @@
 Name:          swig
-Version:       3.0.12
+Version:       4.0.0
 Release:       1mamba
 Summary:       SWIG is a software development tool that connects programs written in C and C++
 Group:         Applications/Development
@@ -52,6 +52,9 @@ install -D -m 755 %{name} %{buildroot}%{_bindir}/%{name}
 #CHANGES README TODO
 
 %changelog
+* Sat May 11 2019 Automatic Build System <autodist@mambasoft.it> 4.0.0-1mamba
+- automatic version update by autodist
+
 * Wed Mar 08 2017 Automatic Build System <autodist@mambasoft.it> 3.0.12-1mamba
 - automatic version update by autodist