diff --git a/xorgproto.spec b/xorgproto.spec
index c2b5a7b..4ea433c 100644
--- a/xorgproto.spec
+++ b/xorgproto.spec
@@ -1,5 +1,5 @@
 Name:          xorgproto
-Version:       2021.4.99.2
+Version:       2021.5
 Release:       1mamba
 Summary:       X.org prototypes
 Group:         Development/Libraries
@@ -148,6 +148,9 @@ This package contains header files for developing applications that use X.org.
 %doc AUTHORS
 
 %changelog
+* Thu Sep 16 2021 Automatic Build System <autodist@mambasoft.it> 2021.5-1mamba
+- automatic version update by autodist
+
 * Thu Jun 03 2021 Automatic Build System <autodist@mambasoft.it> 2021.4.99.2-1mamba
 - automatic version update by autodist