diff --git a/python-intervaltree.spec b/python-intervaltree.spec
index f125d9c..ccfcf87 100644
--- a/python-intervaltree.spec
+++ b/python-intervaltree.spec
@@ -1,6 +1,6 @@
 Name:          python-intervaltree
 Version:       3.1.0
-Release:       2mamba
+Release:       3mamba
 Summary:       A mutable, self-balancing interval tree for Python 2 and 3. Queries may be by point, by range overlap, or by range envelopment
 Group:         System/Libraries
 Vendor:        openmamba
@@ -46,6 +46,9 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %{python_sitearch}/intervaltree-%{version}-py*.egg-info/*
 
 %changelog
+* Fri Apr 07 2023 Sdk Build System <sdk@mambasoft.it> 3.1.0-3mamba
+- rebuilt with python 3.10
+
 * Sun Apr 11 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 3.1.0-2mamba
 - rebuilt with distdeps