diff --git a/cinderclient/tests/unit/test_client.py b/cinderclient/tests/unit/test_client.py
index b7cd3c63a..c9f075338 100644
--- a/cinderclient/tests/unit/test_client.py
+++ b/cinderclient/tests/unit/test_client.py
@@ -110,7 +110,7 @@ class ClientTest(utils.TestCase):
         cs = cinderclient.client.SessionClient(self, api_version='3.0')
         self.assertEqual(expected_base, cs._get_base_url())
 
-    @mock.patch.object(adapter.Adapter, 'request')
+    @mock.patch.object(adapter.LegacyJsonAdapter, '_request')
     @mock.patch.object(exceptions, 'from_response')
     def test_sessionclient_request_method(
             self, mock_from_resp, mock_request):
@@ -155,7 +155,7 @@ class ClientTest(utils.TestCase):
         self.assertEqual(202, response.status_code)
         self.assertFalse(mock_from_resp.called)
 
-    @mock.patch.object(adapter.Adapter, 'request')
+    @mock.patch.object(adapter.LegacyJsonAdapter, '_request')
     def test_sessionclient_request_method_raises_badrequest(
             self, mock_request):
         kwargs = {
@@ -193,7 +193,7 @@ class ClientTest(utils.TestCase):
                           mock.sentinel.url, 'POST', **kwargs)
         self.assertIsNotNone(session_client._logger)
 
-    @mock.patch.object(adapter.Adapter, 'request')
+    @mock.patch.object(adapter.LegacyJsonAdapter, '_request')
     def test_sessionclient_request_method_raises_overlimit(
             self, mock_request):
         resp = {
@@ -232,7 +232,7 @@ class ClientTest(utils.TestCase):
             }
         }
 
-        with mock.patch.object(adapter.Adapter, 'request',
+        with mock.patch.object(adapter.LegacyJsonAdapter, '_request',
                                side_effect=
                                keystone_exception.AuthorizationFailure()):
             session_client = cinderclient.client.SessionClient(
diff --git a/cinderclient/tests/unit/test_shell.py b/cinderclient/tests/unit/test_shell.py
index c5d64af0a..52dcc88c3 100644
--- a/cinderclient/tests/unit/test_shell.py
+++ b/cinderclient/tests/unit/test_shell.py
@@ -232,7 +232,7 @@ class ShellTest(utils.TestCase):
             self.list_volumes_on_service(count)
 
     @mock.patch('keystoneauth1.identity.v2.Password')
-    @mock.patch('keystoneauth1.adapter.Adapter.get_token',
+    @mock.patch('keystoneauth1.adapter.LegacyJsonAdapter.get_token',
                 side_effect=ks_exc.ConnectFailure())
     @mock.patch('keystoneauth1.discover.Discover',
                 side_effect=ks_exc.ConnectFailure())
diff --git a/requirements.txt b/requirements.txt
index 96b4ee4e7..8cea5ad4f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # you find any incorrect lower bounds, let us know or propose a fix.
 pbr>=5.5.0 # Apache-2.0
 PrettyTable>=0.7.2 # BSD
-keystoneauth1>=5.0.0 # Apache-2.0
+keystoneauth1>=5.9.0 # Apache-2.0
 oslo.i18n>=5.0.1 # Apache-2.0
 oslo.utils>=4.8.0 # Apache-2.0
 requests>=2.25.1 # Apache-2.0