diff --git a/python-sortedcontainers.spec b/python-sortedcontainers.spec
index 448d40c..5c64802 100644
--- a/python-sortedcontainers.spec
+++ b/python-sortedcontainers.spec
@@ -1,6 +1,6 @@
 Name:          python-sortedcontainers
-Version:       2.3.0
-Release:       2mamba
+Version:       2.4.0
+Release:       1mamba
 Summary:       A sorted collections library, written in pure-Python, and fast as C-extension
 Group:         System/Libraries
 Vendor:        openmamba
@@ -44,6 +44,9 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %doc LICENSE
 
 %changelog
+* Mon May 17 2021 Automatic Build System <autodist@mambasoft.it> 2.4.0-1mamba
+- automatic version update by autodist
+
 * Mon Apr 12 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.0-2mamba
 - rebuilt with distdeps