diff --git a/opus.spec b/opus.spec
index a208d56..8ccd6f0 100644
--- a/opus.spec
+++ b/opus.spec
@@ -1,5 +1,5 @@
 Name:          opus
-Version:       1.3
+Version:       1.3.1
 Release:       1mamba
 Summary:       A codec for interactive speech and audio transmission over the Internet
 Group:         Applications/Multimedia
@@ -75,6 +75,9 @@ This package contains libraries and header files for developing applications tha
 %doc README
 
 %changelog
+* Tue Apr 23 2019 Automatic Build System <autodist@mambasoft.it> 1.3.1-1mamba
+- automatic version update by autodist
+
 * Fri Oct 19 2018 Automatic Build System <autodist@mambasoft.it> 1.3-1mamba
 - automatic version update by autodist