diff --git a/Rakefile b/Rakefile
index 85e8551..e8075dd 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,6 +1,6 @@
 require 'fileutils'
 
-MRUBY_VERSION="1.2.0"
+MRUBY_VERSION="1.3.0"
 
 file :mruby do
   #sh "git clone --depth=1 https://github.com/mruby/mruby"
diff --git a/mrblib/mruby-cli/setup.rb b/mrblib/mruby-cli/setup.rb
index 8974ad1..f8a8131 100644
--- a/mrblib/mruby-cli/setup.rb
+++ b/mrblib/mruby-cli/setup.rb
@@ -324,7 +324,7 @@ def rakefile
       <<RAKEFILE
 require 'fileutils'
 
-MRUBY_VERSION="1.2.0"
+MRUBY_VERSION="1.3.0"
 
 file :mruby do
   #sh "git clone --depth=1 https://github.com/mruby/mruby"