diff --git a/tests/unit/test_os_utils.py b/tests/unit/test_os_utils.py
index ebb502c..03cb626 100644
--- a/tests/unit/test_os_utils.py
+++ b/tests/unit/test_os_utils.py
@@ -175,7 +175,7 @@ class TestOsUtils(unittest.TestCase):
         """Test retrieving consumer usage."""
         with mock.patch('openstack.connection.Connection') as MockClass:
             MockClass.return_value = MockedOpenStackConn()
-            self.assertTrue(isinstance(self.osu.get_consumer_usage(), list))
+            self.assertIsInstance(self.osu.get_consumer_usage(), list)
 
     def test_get_consumer_usage_with_servers(self):
         """Test retrieving consumer usage with servers list."""
diff --git a/tests/unit/test_plugin_kvm.py b/tests/unit/test_plugin_kvm.py
index 277e1df..b4d8305 100644
--- a/tests/unit/test_plugin_kvm.py
+++ b/tests/unit/test_plugin_kvm.py
@@ -107,7 +107,7 @@ class TestKvm(unittest.TestCase):
         """Ensure the run() method works."""
         sys.modules.pop('libvirt', None)
         result = tests.runner('kvm')
-        self.assertTrue(isinstance(result.exception, SystemExit))
+        self.assertIsInstance(result.exception, SystemExit)
 
     def test_run_failure(self):
         """Ensure the run() method works."""
diff --git a/tests/unit/test_utils.py b/tests/unit/test_utils.py
index be6e2d4..4d71ed1 100644
--- a/tests/unit/test_utils.py
+++ b/tests/unit/test_utils.py
@@ -49,13 +49,13 @@ class TestUtils(unittest.TestCase):
                 os.remove(cache_db)
 
     def test_is_int_is_int(self):  # noqa
-        self.assertTrue(isinstance(utils.is_int(value=1), int))
+        self.assertIsInstance(utils.is_int(value=1), int)
 
     def test_is_int_is_int_str(self):  # noqa
-        self.assertTrue(isinstance(utils.is_int(value='1'), int))
+        self.assertIsInstance(utils.is_int(value='1'), int)
 
     def test_is_int_is_not_int(self):  # noqa
-        self.assertTrue(isinstance(utils.is_int(value='a'), str))
+        self.assertIsInstance(utils.is_int(value='a'), str)
 
     def test_read_config_not_found(self):  # noqa
         self.assertRaises(
@@ -65,7 +65,7 @@ class TestUtils(unittest.TestCase):
         )
 
     def test_read_config_found_dict_return(self):  # noqa
-        self.assertTrue(isinstance(self.config, dict))
+        self.assertIsInstance(self.config, dict)
 
     def test_read_config_found_defaults_in_sections(self):
         """Read config defaults from each section."""