diff --git a/python-ciso8601.spec b/python-ciso8601.spec
index 869e09f..d093292 100644
--- a/python-ciso8601.spec
+++ b/python-ciso8601.spec
@@ -1,6 +1,6 @@
 Name:          python-ciso8601
-Version:       2.3.0
-Release:       2mamba
+Version:       2.3.1
+Release:       1mamba
 Summary:       Converts ISO 8601 or RFC 3339 date time strings into Python datetime objects
 Group:         System/Libraries
 Vendor:        openmamba
@@ -45,6 +45,9 @@ sed -i "s,.*/man/.*,&.gz," %{name}.filelist
 %doc LICENSE
 
 %changelog
+* Tue Oct 31 2023 Automatic Build System <autodist@mambasoft.it> 2.3.1-1mamba
+- automatic version update by autodist
+
 * Tue Sep 26 2023 Automatic Build System <autodist@mambasoft.it> 2.3.0-2mamba
 - rebuilt by autoport with build requirements: python3-devel>=3.11.5-3mamba