diff --git a/qpdf.spec b/qpdf.spec
index d55ff91..ef618c0 100644
--- a/qpdf.spec
+++ b/qpdf.spec
@@ -1,12 +1,12 @@
 Name:          qpdf
-Version:       10.3.2
+Version:       10.4.0
 Release:       1mamba
 Summary:       A command-line program that does structural, content-preserving transformations on PDF files
 Group:         System/Tools
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           https://qpdf.sourceforge.net/
+URL:           https://qpdf.sourceforge.io/
 Source:        http://downloads.sourceforge.net/project/qpdf/qpdf/%{version}/qpdf-%{version}.tar.gz
 License:       Artistic
 ## AUTOBUILDREQ-BEGIN
@@ -96,6 +96,9 @@ This package contains libraries and header files for developing applications tha
 %doc ChangeLog TODO
 
 %changelog
+* Thu Nov 25 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 10.4.0-1mamba
+- update to 10.4.0
+
 * Mon May 10 2021 Automatic Build System <autodist@mambasoft.it> 10.3.2-1mamba
 - automatic version update by autodist