diff --git a/vulkan-headers.spec b/vulkan-headers.spec
index 060f153..6981c4b 100644
--- a/vulkan-headers.spec
+++ b/vulkan-headers.spec
@@ -1,5 +1,5 @@
 Name:          vulkan-headers
-Version:       1.3.263
+Version:       1.3.264
 Release:       1mamba
 Summary:       Vulkan Header files and API registry
 Group:         Development/Libraries
@@ -43,6 +43,9 @@ Vulkan Header files and API registry.
 %doc README.md
 
 %changelog
+* Sat Sep 09 2023 Automatic Build System <autodist@mambasoft.it> 1.3.264-1mamba
+- automatic version update by autodist
+
 * Sun Sep 03 2023 Automatic Build System <autodist@mambasoft.it> 1.3.263-1mamba
 - automatic version update by autodist