diff --git a/README.md b/README.md
index 066c45e4..1ec453e1 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Typical small integer (like flags or error code) is saved only in 1 byte, and ty
 
 ## Performance
 
-![Serialization + Deserialization Speed Test](http://msgpack.sourceforge.net/index/speedtest.png)
+![Serialization + Deserialization Speed Test](http://msgpack.org/index/speedtest.png)
 
 In this test, it measured the elapsed time of serializing and deserializing 200,000 target objects. The target object consists of the three integers and 512 bytes string.
 The source code of this test is available from [frsyuki' serializer-speed-test repository.](http://github.com/frsyuki/serializer-speed-test)
@@ -24,14 +24,14 @@ The source code of this test is available from [frsyuki' serializer-speed-test r
 
 ## Getting Started
 
-Usage and other documents about implementations in each language are found at [the web site.](http://msgpack.sourceforge.net/)
+Usage and other documents about implementations in each language are found at [the web site.](http://msgpack.org/)
 
 
 ## Learn More
 
-  - [Project Web Site](http://msgpack.sourceforge.net/)
-  - [MessagePack format specification](http://msgpack.sourceforge.net/spec)
+  - [Project Web Site](http://msgpack.org/)
+  - [MessagePack format specification](http://wiki.msgpack.org/display/MSGPACK/Format+specification)
   - [Repository at github](http://github.com/msgpack/msgpack)
-  - [Wiki](http://msgpack.sourceforge.net/start)
+  - [Wiki](http://wiki.msgpack.org/display/MSGPACK/Home)
   - [MessagePack-RPC](http://github.com/msgpack/msgpack-rpc)
 
diff --git a/java/ivy.xml b/java/ivy.xml
index 2c8b727f..18ebe08e 100644
--- a/java/ivy.xml
+++ b/java/ivy.xml
@@ -3,7 +3,7 @@
 
   <info organisation="org"
     module="${name}" revision="${version}">
-    <ivyauthor name="MessagePack Project" url="http://msgpack.sourceforge.net/"/>
+    <ivyauthor name="MessagePack Project" url="http://msgpack.org/"/>
     <description>MessagePack</description>
   </info>
 
diff --git a/php/README b/php/README
index ac8e4857..6e22a92d 100644
--- a/php/README
+++ b/php/README
@@ -8,4 +8,4 @@ But unlike JSON, it is very fast and small.
 
 Resources
 ---------
- * [msgpack](http://msgpack.sourceforge.net/)
+ * [msgpack](http://msgpack.org/)
diff --git a/ruby/msgpack.gemspec b/ruby/msgpack.gemspec
index 95a2bd0a..942c4bb0 100644
--- a/ruby/msgpack.gemspec
+++ b/ruby/msgpack.gemspec
@@ -6,7 +6,7 @@ Gem::Specification.new do |s|
   s.summary = "MessagePack, a binary-based efficient data interchange format."
   s.author = "FURUHASHI Sadayuki"
   s.email = "frsyuki@users.sourceforge.jp"
-  s.homepage = "http://msgpack.sourceforge.net/"
+  s.homepage = "http://msgpack.org/"
   s.rubyforge_project = "msgpack"
   s.has_rdoc = true
 	s.rdoc_options = ["ext"]