diff --git a/ruby-gtk3.cygport b/ruby-gtk3.cygport
index 9a3d603..1dd23d9 100644
--- a/ruby-gtk3.cygport
+++ b/ruby-gtk3.cygport
@@ -1,21 +1,20 @@
 inherit rubygem
 
 NAME="ruby-gtk3"
-VERSION=3.2.9
+VERSION=4.1.7
 RELEASE=1
 CATEGORY="Ruby"
 SUMMARY="Ruby GTK+3 bindings"
 DESCRIPTION="Ruby/GTK3 is a Ruby binding of GTK+-3.x."
-HOMEPAGE="http://ruby-gnome2.sourceforge.jp/"
 
-PATCH_URI="3.1.1-link-deps.patch"
+BUILD_REQUIRES="libgtk3-devel ruby-cairo-devel ruby-cairo-gobject-devel ruby-glib2-devel ruby-gobject-introspection-devel ruby-native-package-installer ruby-pango-devel ruby-pkg-config"
+LICENSE="LGPL-2.1-or-later"
 
 PKG_NAMES="${NAME} ${NAME}-devel ${NAME}-doc"
+ruby_gtk3_REQUIRES="ruby-atk ruby-gdk3"
 ruby_gtk3_CONTENTS="--exclude=sample ${RUBYGEM_EXTDIR#/} ${RUBYGEM_INSTDIR#/} ${RUBYGEM_SPEC#/}"
 ruby_gtk3_devel_REQUIRES=${NAME}
 ruby_gtk3_devel_CONTENTS="usr/lib/pkgconfig/"
 ruby_gtk3_doc_CONTENTS="${RUBYGEM_DOCDIR#/} ${RUBYGEM_INSTDIR#/}/sample/"
-# no public API
-PKG_IGNORE="usr/lib/libruby-gtk3.a"
 
-DEPS_PATH="${RUBYGEM_EXTDIR%/*}/cairo-*:${RUBYGEM_EXTDIR%/*}/glib2-${VERSION}:${RUBYGEM_EXTDIR%/*}/gdk3-${VERSION}:${RUBYGEM_EXTDIR%/*}/gobject-introspection-${VERSION}:${RUBYGEM_EXTDIR%/*}/pango-${VERSION}"
+DEPS_PATH="${RUBYGEM_EXTDIR%/*}/cairo-*:${RUBYGEM_EXTDIR%/*}/glib2-${VERSION}:${RUBYGEM_EXTDIR%/*}/gdk3-${VERSION}:${RUBYGEM_EXTDIR%/*}/gobject-introspection-${VERSION}"