diff --git a/test/class_snapshot_test.rb b/test/class_snapshot_test.rb
index 8659822..2537cfa 100644
--- a/test/class_snapshot_test.rb
+++ b/test/class_snapshot_test.rb
@@ -1,6 +1,6 @@
 require "test_helper"
 
-class ClassSnapshotTest < Test::Unit::TestCase
+class ClassSnapshotTest < Minitest::Test
 
   def test_detect_class_method_on_class
     for_all_method_visibilities do |visibility|
@@ -84,4 +84,4 @@ class ClassSnapshotTest < Test::Unit::TestCase
     end
   end
 
-end
\ No newline at end of file
+end
diff --git a/test/instance_snapshot_test.rb b/test/instance_snapshot_test.rb
index 3b50283..53ca561 100644
--- a/test/instance_snapshot_test.rb
+++ b/test/instance_snapshot_test.rb
@@ -1,6 +1,6 @@
 require "test_helper"
 
-class InstanceSnapshotTest < Test::Unit::TestCase
+class InstanceSnapshotTest < Minitest::Test
 
   def test_detect_instance_method_on_singleton_class
     for_all_method_visibilities do |visibility|
@@ -119,4 +119,4 @@ class InstanceSnapshotTest < Test::Unit::TestCase
     end
   end
 
-end
\ No newline at end of file
+end
diff --git a/test/module_snapshot_test.rb b/test/module_snapshot_test.rb
index d6a3498..27bea65 100644
--- a/test/module_snapshot_test.rb
+++ b/test/module_snapshot_test.rb
@@ -1,6 +1,6 @@
 require "test_helper"
 
-class ModuleSnapshotTest < Test::Unit::TestCase
+class ModuleSnapshotTest < Minitest::Test
 
   def test_detect_module_method_on_module
     for_all_method_visibilities do |visibility|
@@ -37,4 +37,4 @@ class ModuleSnapshotTest < Test::Unit::TestCase
       assert_method_exists(mod, superdupermod, :foo, visibility)
     end
   end
-end
\ No newline at end of file
+end
diff --git a/test/snapshot_test.rb b/test/snapshot_test.rb
index c81f379..a5885dc 100644
--- a/test/snapshot_test.rb
+++ b/test/snapshot_test.rb
@@ -1,7 +1,7 @@
 require "test_helper"
 require "blankslate"
 
-class SnapshotTest < Test::Unit::TestCase
+class SnapshotTest < Minitest::Test
 
   include Introspection
 
@@ -49,7 +49,8 @@ class SnapshotTest < Test::Unit::TestCase
   end
 
   def test_should_cope_with_blankslate_object
-    assert_nothing_raised { Snapshot.new(BlankSlate.new) }
+    # Should not raise anything
+    Snapshot.new(BlankSlate.new)
   end
 
-end
\ No newline at end of file
+end
diff --git a/test/test_helper.rb b/test/test_helper.rb
index a4c1df8..400a743 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -2,7 +2,7 @@ require "rubygems"
 require "bundler/setup"
 
 require "introspection"
-require "test/unit"
+require "minitest/autorun"
 
 module Introspection
   module TestHelper
@@ -23,8 +23,8 @@ module Introspection
   end
 end
 
-class Test::Unit::TestCase
+class Minitest::Test
   include Introspection::TestHelper
   include Introspection::LocalAssertions
   include Introspection::Assertions
-end
\ No newline at end of file
+end
-- 
1.9.3