diff --git a/guides/source/testing.md b/guides/source/testing.md
index 0db0edf039..e13da01364 100644
--- a/guides/source/testing.md
+++ b/guides/source/testing.md
@@ -484,7 +484,7 @@ All the basic assertions such as `assert_equal` defined in `Minitest::Assertions
 
 Each of these classes include `Minitest::Assertions`, allowing us to use all of the basic assertions in our tests.
 
-NOTE: For more information on `Minitest`, refer to [Minitest](http://ruby-doc.org/stdlib-2.2.2/libdoc/minitest/rdoc/MiniTest.html)
+NOTE: For more information on `Minitest`, refer to [Minitest](http://docs.seattlerb.org/minitest)
 
 Functional Tests for Your Controllers
 -------------------------------------