diff --git a/libimagequant.spec b/libimagequant.spec
index c185d3b..0113610 100644
--- a/libimagequant.spec
+++ b/libimagequant.spec
@@ -1,5 +1,5 @@
 Name:          libimagequant
-Version:       4.2.1
+Version:       4.2.2
 Release:       1mamba
 Summary:       Palette quantization library that powers pngquant and other PNG optimizers
 Group:         System/Libraries
@@ -72,6 +72,9 @@ cargo cinstall --destdir=%{buildroot} --prefix=%{_prefix} --libdir=%{_libdir} --
 %doc README.md
 
 %changelog
+* Sat Oct 14 2023 Automatic Build System <autodist@mambasoft.it> 4.2.2-1mamba
+- automatic version update by autodist
+
 * Mon Sep 11 2023 Automatic Build System <autodist@mambasoft.it> 4.2.1-1mamba
 - automatic version update by autodist