diff --git a/exo.spec b/exo.spec
index 52ecfdf..5810106 100644
--- a/exo.spec
+++ b/exo.spec
@@ -1,19 +1,17 @@
 %define        majver %(echo %version | cut -d. -f1-2)
 Name:          exo
-Version:       4.16.2
+Version:       4.16.3
 Release:       1mamba
 Summary:       Application library for the Xfce desktop environment
 Group:         Development/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           https://libexo.os-cillation.com/
+URL:           https://gitlab.xfce.org/xfce/exo
 Source:        https://github.com/xfce-mirror/exo.git/exo-%{version}/exo-%{version}.tar.bz2
-#Source:        http://archive.xfce.org/src/xfce/exo/%{majver}/exo-%{version}.tar.bz2
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: ldconfig
 BuildRequires: libICE-devel
 BuildRequires: libSM-devel
 BuildRequires: libX11-devel
@@ -28,7 +26,7 @@ BuildRequires: libfreetype-devel
 BuildRequires: libgdk-pixbuf-devel
 BuildRequires: libglib-devel
 BuildRequires: libgraphite2-devel
-BuildRequires: libgtk-devel
+BuildRequires: libgtk3-devel
 BuildRequires: libharfbuzz-devel
 BuildRequires: libpango-devel
 BuildRequires: libpcre-devel
@@ -120,6 +118,9 @@ fi
 %doc NEWS README.md THANKS
 
 %changelog
+* Thu Dec 23 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 4.16.3-1mamba
+- update to 4.16.3
+
 * Mon Apr 12 2021 Automatic Build System <autodist@mambasoft.it> 4.16.2-1mamba
 - automatic version update by autodist