diff --git a/sanic_security/authentication.py b/sanic_security/authentication.py
index 79f2d69..e5c2e93 100644
--- a/sanic_security/authentication.py
+++ b/sanic_security/authentication.py
@@ -16,7 +16,6 @@
     DeactivatedError,
     SecondFactorFulfilledError,
     ExpiredError,
-    RequiredRefreshError,
 )
 from sanic_security.models import Account, AuthenticationSession, Role, TwoStepSession
 from sanic_security.utils import get_ip
diff --git a/sanic_security/authorization.py b/sanic_security/authorization.py
index f3bb437..945072b 100644
--- a/sanic_security/authorization.py
+++ b/sanic_security/authorization.py
@@ -6,7 +6,7 @@
 from tortoise.exceptions import DoesNotExist
 
 from sanic_security.authentication import authenticate
-from sanic_security.exceptions import AuthorizationError
+from sanic_security.exceptions import AuthorizationError, AnonymousError
 from sanic_security.models import Role, Account, AuthenticationSession
 from sanic_security.utils import get_ip
 
@@ -58,7 +58,7 @@ async def check_permissions(
     """
     authentication_session = await authenticate(request)
     if authentication_session.is_anonymous:
-        raise AuthorizationError("Session is anonymous.")
+        raise AnonymousError()
     roles = await authentication_session.bearer.roles.filter(deleted=False).all()
     for role in roles:
         for required_permission, role_permission in zip(
@@ -93,7 +93,7 @@ async def check_roles(request: Request, *required_roles: str) -> AuthenticationS
     """
     authentication_session = await authenticate(request)
     if authentication_session.is_anonymous:
-        raise AuthorizationError("Session is anonymous.")
+        raise AnonymousError()
     roles = await authentication_session.bearer.roles.filter(deleted=False).all()
     for role in roles:
         if role.name in required_roles:
diff --git a/sanic_security/exceptions.py b/sanic_security/exceptions.py
index fbcc373..a395911 100644
--- a/sanic_security/exceptions.py
+++ b/sanic_security/exceptions.py
@@ -195,6 +195,15 @@ def __init__(self, message):
         super().__init__(message, 403)
 
 
+class AnonymousError(AuthorizationError):
+    """
+    Raised when attempting to authorize an anonymous session.
+    """
+
+    def __init__(self):
+        super().__init__("Session is anonymous.")
+
+
 class CredentialsError(SecurityError):
     """
     Raised when credentials are invalid.