diff --git a/gphoto.spec b/gphoto.spec
index 3dc5918..2ed5436 100644
--- a/gphoto.spec
+++ b/gphoto.spec
@@ -1,29 +1,40 @@
 Name:          gphoto
-Version:       2.5.27
+Version:       2.5.28
 Release:       1mamba
 Summary:       The command line interface to libgphoto
 Group:         Applications/Graphics
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           https://www.gphoto.org
+URL:           http://www.gphoto.org
 Source:        http://downloads.sourceforge.net/project/gphoto/gphoto/%{version}/gphoto2-%{version}.tar.bz2
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: libX11-devel
+BuildRequires: libXau-devel
+BuildRequires: libXdmcp-devel
+BuildRequires: libaa-devel
+BuildRequires: libbsd-devel
+BuildRequires: libcdk-devel
 BuildRequires: libexif-devel
 BuildRequires: libgphoto2-devel
+BuildRequires: libgpm-devel
 BuildRequires: libjpeg-devel
 BuildRequires: libltdl-devel
+BuildRequires: libncurses-devel
 BuildRequires: libpopt-devel
 BuildRequires: libreadline-devel
+BuildRequires: libslang-devel
+BuildRequires: libxcb-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libgphoto2-devel >= 1:2.5.19-1mamba
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 The command line interface to libgphoto. It allows almost everything that libgphoto2 can do.
 
+%debug_package
+
 %prep
 %setup -q -n gphoto2-%{version}
 
@@ -48,6 +59,9 @@ The command line interface to libgphoto. It allows almost everything that libgph
 %{_mandir}/man1/gphoto2*
 
 %changelog
+* Thu Jan 06 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.5.28-1mamba
+- update to 2.5.28
+
 * Sun Feb 21 2021 Automatic Build System <autodist@mambasoft.it> 2.5.27-1mamba
 - automatic version update by autodist