diff --git a/openstack_auth/backend.py b/openstack_auth/backend.py
index d43e0bac..ed62256e 100644
--- a/openstack_auth/backend.py
+++ b/openstack_auth/backend.py
@@ -100,9 +100,9 @@ class KeystoneBackend(object):
         else:
             msg = _('No authentication backend could be determined to '
                     'handle the provided credentials.')
-            LOG.warn('No authentication backend could be determined to '
-                     'handle the provided credentials. This is likely a '
-                     'configuration error that should be addressed.')
+            LOG.warning('No authentication backend could be determined to '
+                        'handle the provided credentials. This is likely a '
+                        'configuration error that should be addressed.')
             raise exceptions.KeystoneAuthException(msg)
 
         session = utils.get_session()
diff --git a/openstack_auth/policy.py b/openstack_auth/policy.py
index 5461b22d..701e0374 100644
--- a/openstack_auth/policy.py
+++ b/openstack_auth/policy.py
@@ -58,8 +58,8 @@ def _get_enforcer():
                 LOG.debug("adding enforcer for service: %s" % service)
                 _ENFORCER[service] = enforcer
             else:
-                LOG.warn("policy file for service: %s not found at %s" %
-                         (service, enforcer.policy_path))
+                LOG.warning("policy file for service: %s not found at %s" %
+                            (service, enforcer.policy_path))
     return _ENFORCER