diff --git a/cloudkitty/common/defaults.py b/cloudkitty/common/defaults.py
index 534eb58b..1fc69893 100644
--- a/cloudkitty/common/defaults.py
+++ b/cloudkitty/common/defaults.py
@@ -13,7 +13,6 @@
 #    under the License.
 #
 
-from oslo_config import cfg
 from oslo_middleware import cors
 
 
@@ -24,23 +23,20 @@ def set_config_defaults():
 
 def set_cors_middleware_defaults():
     """Update default configuration options for oslo.middleware."""
-    # CORS Defaults
-    # TODO(krotscheck): Update with https://review.openstack.org/#/c/285368/
-    cfg.set_defaults(cors.CORS_OPTS,
-                     allow_headers=['X-Auth-Token',
-                                    'X-Identity-Status',
-                                    'X-Roles',
-                                    'X-Service-Catalog',
-                                    'X-User-Id',
-                                    'X-Tenant-Id',
-                                    'X-OpenStack-Request-ID'],
-                     expose_headers=['X-Auth-Token',
-                                     'X-Subject-Token',
-                                     'X-Service-Token',
-                                     'X-OpenStack-Request-ID'],
-                     allow_methods=['GET',
-                                    'PUT',
-                                    'POST',
-                                    'DELETE',
-                                    'PATCH']
-                     )
+    cors.set_defaults(
+        allow_headers=['X-Auth-Token',
+                       'X-Identity-Status',
+                       'X-Roles',
+                       'X-Service-Catalog',
+                       'X-User-Id',
+                       'X-Tenant-Id',
+                       'X-OpenStack-Request-ID'],
+        expose_headers=['X-Auth-Token',
+                        'X-Subject-Token',
+                        'X-Service-Token',
+                        'X-OpenStack-Request-ID'],
+        allow_methods=['GET',
+                       'PUT',
+                       'POST',
+                       'DELETE',
+                       'PATCH'])
diff --git a/requirements.txt b/requirements.txt
index ef15c22f..36fbf12f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ oslo.db>=4.1.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.log>=1.14.0 # Apache-2.0
 oslo.messaging!=5.25.0,>=5.24.2 # Apache-2.0
-oslo.middleware>=3.0.0 # Apache-2.0
+oslo.middleware>=3.27.0 # Apache-2.0
 oslo.policy>=0.5.0 # Apache-2.0
 oslo.utils>=3.5.0 # Apache-2.0
 SQLAlchemy<1.1.0,>=1.0.10 # MIT