diff --git a/protobuf.spec b/protobuf.spec
index d3989eb..56fd9c0 100644
--- a/protobuf.spec
+++ b/protobuf.spec
@@ -1,5 +1,5 @@
 Name:          protobuf
-Version:       3.17.1
+Version:       3.17.2
 Release:       1mamba
 Summary:       A way of encoding structured data in an efficient yet extensible format
 Group:         Development/Tools
@@ -114,6 +114,9 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %{python3_sitearch}/protobuf-%{version}-py*.egg-info/*
 
 %changelog
+* Thu Jun 03 2021 Automatic Build System <autodist@mambasoft.it> 3.17.2-1mamba
+- automatic version update by autodist
+
 * Tue May 25 2021 Automatic Build System <autodist@mambasoft.it> 3.17.1-1mamba
 - automatic version update by autodist