diff --git a/qcad.spec b/qcad.spec
index 85a9f1f..ec61c88 100644
--- a/qcad.spec
+++ b/qcad.spec
@@ -4,14 +4,14 @@
 %define _huver 2.0.4.0-1
 
 Name:          qcad
-Version:       3.26.2.0
+Version:       3.26.3.0
 Release:       1mamba
 Summary:       A professional 2D CAD system
 Group:         Graphical Desktop/Applications/Graphics
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Tiziana Ferro <tiziana.ferro@email.it>
-URL:           https://www.qcad.org
+URL:           https://www.qcad.org/en/
 Source0:       git://github.com/qcad/qcad.git/v%{version}/%{name}-%{version}.tar.bz2
 #Source0:       ftp://ribbonsoft.com/archives/qcad/%{name}-%{version}-1-community.src.tar.gz
 #Source1:       ftp://ribbonsoft.com/archives/qcad/%{name}-manual-cs-%{_csver}.html.zip
@@ -21,15 +21,13 @@ Source0:       git://github.com/qcad/qcad.git/v%{version}/%{name}-%{version}.tar
 License:       GPL 
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libGL-devel
 BuildRequires: libGLU-devel
 BuildRequires: libX11-devel
 BuildRequires: libcups-devel
 BuildRequires: libgcc
-BuildRequires: libqt4-devel
+BuildRequires: libglvnd-devel
 BuildRequires: libqt5-devel
 BuildRequires: libstdc++6-devel
-BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libmng-devel
 BuildRequires: libpng-devel
@@ -145,6 +143,9 @@ EOF
 #% doc qcad/doc qcad/README qcad/data
 
 %changelog
+* Tue Jun 01 2021 Automatic Build System <autodist@mambasoft.it> 3.26.3.0-1mamba
+- automatic version update by autodist
+
 * Fri Apr 16 2021 Automatic Build System <autodist@mambasoft.it> 3.26.2.0-1mamba
 - automatic version update by autodist