diff --git a/qpdf.spec b/qpdf.spec
index 3aaa525..cec206d 100644
--- a/qpdf.spec
+++ b/qpdf.spec
@@ -1,5 +1,5 @@
 Name:          qpdf
-Version:       11.6.3
+Version:       11.6.4
 Release:       1mamba
 Summary:       A command-line program that does structural, content-preserving transformations on PDF files
 Group:         System/Tools
@@ -97,6 +97,9 @@ This package contains libraries and header files for developing applications tha
 %doc ChangeLog
 
 %changelog
+* Mon Dec 11 2023 Automatic Build System <autodist@mambasoft.it> 11.6.4-1mamba
+- automatic version update by autodist
+
 * Mon Oct 16 2023 Automatic Build System <autodist@mambasoft.it> 11.6.3-1mamba
 - automatic version update by autodist