diff --git a/python-docker.spec b/python-docker.spec
index d1ca15d..46c001e 100644
--- a/python-docker.spec
+++ b/python-docker.spec
@@ -1,5 +1,5 @@
 Name:          python-docker
-Version:       3.1.1
+Version:       3.1.3
 Release:       1mamba
 Summary:       An API client for docker written in Python
 Group:         System/Libraries
@@ -47,6 +47,9 @@ CFLAGS="%{optflags}" %{__python} setup.py build
 %doc LICENSE README.md
 
 %changelog
+* Wed Mar 21 2018 Automatic Build System <autodist@mambasoft.it> 3.1.3-1mamba
+- automatic version update by autodist
+
 * Thu Mar 08 2018 Automatic Build System <autodist@mambasoft.it> 3.1.1-1mamba
 - automatic version update by autodist