diff --git a/qxlsx.spec b/qxlsx.spec
index c53937c..e053a7a 100644
--- a/qxlsx.spec
+++ b/qxlsx.spec
@@ -1,5 +1,5 @@
 Name:          qxlsx
-Version:       1.4.6
+Version:       1.4.7
 Release:       1mamba
 Summary:       Excel file(*.xlsx) reader/writer library using Qt 5 or 6
 Group:         System/Libraries
@@ -76,6 +76,9 @@ cd QXlsx
 %doc README.RU.md README.ko.md README.md
 
 %changelog
+* Mon Dec 18 2023 Automatic Build System <autodist@mambasoft.it> 1.4.7-1mamba
+- automatic version update by autodist
+
 * Tue Apr 25 2023 Automatic Build System <autodist@mambasoft.it> 1.4.6-1mamba
 - automatic version update by autodist