diff --git a/libxfce4util-4.14.0.tar.bz2 b/libxfce4util-4.14.0.tar.bz2
deleted file mode 100644
index 6c9100b..0000000
Binary files a/libxfce4util-4.14.0.tar.bz2 and /dev/null differ
diff --git a/libxfce4util-4.16.0.tar.bz2 b/libxfce4util-4.16.0.tar.bz2
new file mode 100644
index 0000000..1484234
Binary files /dev/null and b/libxfce4util-4.16.0.tar.bz2 differ
diff --git a/libxfce4util.spec b/libxfce4util.spec
index d3668fc..aa3c83e 100644
--- a/libxfce4util.spec
+++ b/libxfce4util.spec
@@ -1,12 +1,15 @@
+%global xfceversion 4.16
+
+%global namespc Libxfce4util
+
 Name:           libxfce4util
-Version:        4.14.0
+Version:        4.16.0
 Release:        1
-Summary:        Basic utility library for Xfce4
+Summary:        Utility library for the Xfce4 desktop environment
 
 License:        LGPLv2+
 URL:            http://www.xfce.org/
-Source0:        http://archive.xfce.org/src/xfce/%{name}/4.14/%{name}-%{version}.tar.bz2
-#VCS: git:git://git.xfce.org/xfce/libxfce4util
+Source0:        http://archive.xfce.org/src/xfce/%{name}/%{xfceversion}/%{name}-%{version}.tar.bz2
 
 BuildRequires:  gcc-c++
 BuildRequires:  pkgconfig(glib-2.0) >= 2.24.0
@@ -15,6 +18,7 @@ BuildRequires:  intltool
 BuildRequires:  gtk-doc
 BuildRequires:  gobject-introspection-devel
 BuildRequires:  vala
+BuildRequires:  make
 
 %description
 This package includes basic utility non-GUI functions for Xfce4.
@@ -23,19 +27,18 @@ This package includes basic utility non-GUI functions for Xfce4.
 Summary: Developpment tools for libxfce4util library
 Requires: %{name} = %{version}-%{release}
 Requires: glib2-devel
-Requires: gtk2-devel
+Requires: gtk3-devel
 Requires: pkgconfig
 
 %description devel
-This package includes static libraries and header files for the libxfce4util library.
+This package includes static libraries and header files for the
+libxfce4util library.
 
 %prep
 %setup -q
 
 %build
-
 %configure --disable-static
-
 # Remove rpaths
 sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool
 sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
@@ -46,9 +49,10 @@ export LD_LIBRARY_PATH="`pwd`/libxfce4util/.libs"
 %install
 %make_install
 
-chmod 755 $RPM_BUILD_ROOT/%{_libdir}/*.so
+# kevin identified the issue - fixes wrong library permissions
+chmod 755 %{buildroot}/%{_libdir}/*.so
 
-rm -f $RPM_BUILD_ROOT%{_libdir}/*.la
+rm -f %{buildroot}%{_libdir}/*.la
 
 %find_lang %{name}
 
@@ -56,11 +60,11 @@ rm -f $RPM_BUILD_ROOT%{_libdir}/*.la
 
 %files -f %{name}.lang
 %license COPYING
-%doc AUTHORS ChangeLog NEWS README README.Kiosk THANKS
+%doc AUTHORS ChangeLog NEWS README.Kiosk THANKS
 %{_libdir}/lib*.so.*
 %{_sbindir}/xfce4-kiosk-query
-%{_libdir}/girepository-1.0/%{name}-1.0.typelib
-%{_datadir}/gir-1.0/%{name}-1.0.gir
+%{_libdir}/girepository-1.0/%{namespc}-1.0.typelib
+%{_datadir}/gir-1.0/%{namespc}-1.0.gir
 %{_datadir}/vala/vapi/%{name}-1.0.vapi
 
 %files devel
@@ -70,6 +74,8 @@ rm -f $RPM_BUILD_ROOT%{_libdir}/*.la
 %doc %{_datadir}/gtk-doc/
 
 %changelog
+* Fri Jun 18 2021 zhanglin <lin.zhang@turbolinux.com.cn> - 4.16.0-1
+- Update to 4.16.0
+
 * Wed Jun 10 2020 Dillon Chen <dillon.chen@turbolinux.com.cn> - 4.14.0-1
 - build for openEuler
-