diff --git a/.gitignore b/.gitignore
index 5d714cd..bf57478 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,4 @@
 /clutter-gdk-3.3.2.gem
 /clutter-gdk-3.3.6.gem
 /clutter-gdk-3.3.7.gem
+/clutter-gdk-3.4.0.gem
diff --git a/rubygem-clutter-gdk.spec b/rubygem-clutter-gdk.spec
index e30ec7c..2af6278 100644
--- a/rubygem-clutter-gdk.spec
+++ b/rubygem-clutter-gdk.spec
@@ -3,7 +3,7 @@
 %undefine        _changelog_trimtime
 
 Name:		rubygem-%{gem_name}
-Version:	3.3.7
+Version:	3.4.0
 Release:	1%{?dist}
 
 Summary:	Ruby binding of GDK specific API of Clutter
@@ -44,7 +44,7 @@ gem unpack %{SOURCE0}
 gem spec %{SOURCE0} -l --ruby > %{gem_name}.gemspec
 
 # Allow ruby-gnome2 no less than ones
-sed -i -e 's|= 3\.3\.7|>= 3.3.7|' %{gem_name}.gemspec
+sed -i -e 's|= 3\.4\.0|>= 3.4.0|' %{gem_name}.gemspec
 
 %build
 gem build %{gem_name}.gemspec
@@ -80,7 +80,10 @@ popd
 %doc	%{gem_docdir}
 
 %changelog
-* Sun Sep  8 2019 2019 Mamoru TASAKA <mtasaka@fedoraproject.org> - 3.3.7-1
+* Mon Oct 14 2019 Mamoru TASAKA <mtasaka@fedoraproject.org> - 3.4.0-1
+- 3.4.0
+
+* Sun Sep  8 2019 Mamoru TASAKA <mtasaka@fedoraproject.org> - 3.3.7-1
 - 3.3.7
 
 * Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 3.3.6-2
diff --git a/sources b/sources
index d352394..6f8b7df 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (clutter-gdk-3.3.7.gem) = b03f74c328bb05353858d461fa47a35e68e976a7b12358ddf312641c458ec7dfc9cb0d329e495284d021bde0245351d71a722aaabe2eff3855fdefdd8df78456
+SHA512 (clutter-gdk-3.4.0.gem) = 273ddaa687e830487ea3fd670e7f3c299fbcb60a694f794c7893321485940bfa6f54c78dd44edc9bfaf50e6c03088c78b63fc0f3c97fd4427819098e83fbe8a1