diff --git a/connection_pool.gemspec b/connection_pool.gemspec
index 2b62504..2d8a3e3 100644
--- a/connection_pool.gemspec
+++ b/connection_pool.gemspec
@@ -15,4 +15,5 @@ Gem::Specification.new do |s|
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ["lib"]
   s.license = "MIT"
+  s.add_development_dependency 'minitest', '>= 5.0.0'
 end
diff --git a/test/helper.rb b/test/helper.rb
index 0999053..362537a 100644
--- a/test/helper.rb
+++ b/test/helper.rb
@@ -2,9 +2,9 @@ require 'rubygems'
 require 'minitest/pride'
 require 'minitest/autorun'
 
-puts RUBY_DESCRIPTION
+require 'connection_pool'
 
-class MiniTest::Unit::TestCase
+class Minitest::Unit::TestCase
 
   def async_test(time=0.5)
     q = TimedQueue.new
@@ -13,7 +13,3 @@ class MiniTest::Unit::TestCase
   end
 
 end
-
-$VERBOSE = 1
-
-require_relative '../lib/connection_pool'
diff --git a/test/test_connection_pool.rb b/test/test_connection_pool.rb
index e94694b..71dfb7f 100644
--- a/test/test_connection_pool.rb
+++ b/test/test_connection_pool.rb
@@ -1,7 +1,7 @@
 Thread.abort_on_exception = true
 require 'helper'
 
-class TestConnectionPool < MiniTest::Unit::TestCase
+class TestConnectionPool < Minitest::Test
 
   class NetworkConnection
     def initialize