diff --git a/.gitignore b/.gitignore
index 5c0ef06..91d0793 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 nokogiri-1.4.2.gem
+nokogiri-1.4.3.1.gem
diff --git a/nokogiri-1.4.2-rake-task.patch b/nokogiri-1.4.2-rake-task.patch
deleted file mode 100644
index 7838206..0000000
--- a/nokogiri-1.4.2-rake-task.patch
+++ /dev/null
@@ -1,15 +0,0 @@
---- nokogiri-1.4.2/Rakefile.debug	2010-05-26 01:38:21.000000000 +0900
-+++ nokogiri-1.4.2/Rakefile	2010-05-26 02:01:27.000000000 +0900
-@@ -129,7 +129,11 @@
- end
- 
- require 'tasks/test'
--require 'tasks/cross_compile'
-+begin
-+  require 'tasks/cross_compile'
-+rescue RuntimeError => err
-+  p err.message
-+end
- 
- desc "set environment variables to build and/or test with debug options"
- task :debug do
diff --git a/rubygem-nokogiri.spec b/rubygem-nokogiri.spec
index 1ce0273..cbd5a9f 100644
--- a/rubygem-nokogiri.spec
+++ b/rubygem-nokogiri.spec
@@ -7,19 +7,19 @@
 %define	geminstdir		%{gemdir}/gems/%{gemname}-%{version}
 
 # Note for packager:
-# Check if we can update nokogiri to 1.4.0 on < F-12:
-# It seems that some functions will be removed on 1.4.0
+# Nokogiri 1.4.3.1 gem says that Nokogiri upstream will
+# no longer support ruby 1.8.6 after 2010-08-01, so
+# it seems that 1.4.3.1 is the last version for F-13 and below.
 
 Summary:	An HTML, XML, SAX, and Reader parser
 Name:		rubygem-%{gemname}
-Version:	1.4.2
+Version:	1.4.3.1
 Release:	1%{?dist}
 Group:		Development/Languages
 License:	MIT
 URL:		http://nokogiri.rubyforge.org/nokogiri/
 Source0:	http://gems.rubyforge.org/gems/%{gemname}-%{version}.gem
 Patch0:		nokogiri-1.4.2-test-xml-element-number.patch
-Patch1:		nokogiri-1.4.2-rake-task.patch
 
 BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:	ruby(abi) = %{rubyabi}
@@ -75,7 +75,6 @@ gem install \
 
 pushd .%{geminstdir}
 %patch0 -p1 -b .orig_fail
-%patch1 -p1 -b .orig_task
 popd
 
 %build
@@ -212,6 +211,9 @@ popd
 %{ruby_sitelib}/xsd/
 
 %changelog
+* Fri Jul 30 2010 Mamoru Tasaka <mtasaka@ioa.s.u-tokyo.ac.jp> - 1.4.3.1-1
+- 1.4.3.1
+
 * Wed May 26 2010 Mamoru Tasaka <mtasaka@ioa.s.u-tokyo.ac.jp> - 1.4.2-1
 - 1.4.2
 
diff --git a/sources b/sources
index 41079e6..5daca86 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-f229d6ce94bc474c7e41e43ece32d4d8  nokogiri-1.4.2.gem
+36d092a5f40b8dece5b32d434cc73fd2  nokogiri-1.4.3.1.gem