diff --git a/requirements.txt b/requirements.txt
index 3aa8c6bdf..1a7e7c975 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ oslo.messaging>=5.36.0 # Apache-2.0
 oslo.middleware>=3.35.0 # Apache-2.0
 oslo.serialization>=2.25.0 # Apache-2.0
 oslo.log>=3.44.0 # Apache-2.0
-oslo.policy>=3.6.0 # Apache-2.0
+oslo.policy>=4.5.0 # Apache-2.0
 oslo.i18n>=3.20.0 # Apache-2.0
 oslo.upgradecheck>=1.3.0 # Apache-2.0
 pecan>=1.2.1 # BSD
diff --git a/vitrage/api/hooks.py b/vitrage/api/hooks.py
index e9044e261..a70fe25fa 100644
--- a/vitrage/api/hooks.py
+++ b/vitrage/api/hooks.py
@@ -14,7 +14,6 @@ import oslo_messaging
 
 from oslo_config import cfg
 from oslo_context import context
-from oslo_policy import opts
 from oslo_policy import policy
 from pecan import hooks
 
@@ -26,12 +25,6 @@ from vitrage import storage
 
 CONF = cfg.CONF
 
-# TODO(gmann): Remove setting the default value of config policy_file
-# once oslo_policy change the default value to 'policy.yaml'.
-# https://github.com/openstack/oslo.policy/blob/a626ad12fe5a3abd49d70e3e5b95589d279ab578/oslo_policy/opts.py#L49
-DEFAULT_POLICY_FILE = 'policy.yaml'
-opts.set_defaults(CONF, DEFAULT_POLICY_FILE)
-
 
 class ConfigHook(hooks.PecanHook):
     """Attach the configuration and policy enforcer object to the request. """