diff --git a/python-tornado.spec b/python-tornado.spec
index 21d3940..3d3ebec 100644
--- a/python-tornado.spec
+++ b/python-tornado.spec
@@ -1,6 +1,6 @@
 Name:          python-tornado
-Version:       6.3.3
-Release:       2mamba
+Version:       6.4
+Release:       1mamba
 Summary:       Scalable, non-blocking web server and tools
 Group:         System/Libraries
 Vendor:        openmamba
@@ -46,6 +46,9 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %doc LICENSE README.rst
 
 %changelog
+* Wed Nov 29 2023 Automatic Build System <autodist@mambasoft.it> 6.4-1mamba
+- automatic version update by autodist
+
 * Wed Sep 27 2023 Automatic Build System <autodist@mambasoft.it> 6.3.3-2mamba
 - rebuilt by autoport with build requirements: python3-devel>=3.11.5-3mamba