diff --git a/xa.spec b/xa.spec
index a43c032..5d5f08a 100644
--- a/xa.spec
+++ b/xa.spec
@@ -1,5 +1,5 @@
 Name:          xa
-Version:       2.3.14
+Version:       2.4.0
 Release:       1mamba
 Summary:       Cross-assembler for the 6502 microprocessor
 Group:         Development/Tools
@@ -48,6 +48,9 @@ Cross-assembler for the 6502 microprocessor.
 %doc COPYING
 
 %changelog
+* Mon Nov 20 2023 Automatic Build System <autodist@mambasoft.it> 2.4.0-1mamba
+- automatic version update by autodist
+
 * Thu Feb 09 2023 Automatic Build System <autodist@mambasoft.it> 2.3.14-1mamba
 - automatic version update by autodist