diff --git a/authentik/core/types.py b/authentik/core/types.py
index 5677242fc..036b17c78 100644
--- a/authentik/core/types.py
+++ b/authentik/core/types.py
@@ -8,7 +8,7 @@ from authentik.core.api.utils import PassiveSerializer
 from authentik.flows.challenge import Challenge
 
 
-@dataclass
+@dataclass(slots=True)
 class UILoginButton:
     """Dataclass for Source's ui_login_button"""
 
diff --git a/authentik/flows/markers.py b/authentik/flows/markers.py
index 45882d680..e59333e68 100644
--- a/authentik/flows/markers.py
+++ b/authentik/flows/markers.py
@@ -30,7 +30,7 @@ class StageMarker:
         return binding
 
 
-@dataclass
+@dataclass(slots=True)
 class ReevaluateMarker(StageMarker):
     """Reevaluate Marker, forces stage's policies to be evaluated again."""
 
diff --git a/authentik/flows/planner.py b/authentik/flows/planner.py
index 2269837d8..64dfdaba0 100644
--- a/authentik/flows/planner.py
+++ b/authentik/flows/planner.py
@@ -45,7 +45,7 @@ def cache_key(flow: Flow, user: Optional[User] = None) -> str:
     return prefix
 
 
-@dataclass
+@dataclass(slots=True)
 class FlowPlan:
     """This data-class is the output of a FlowPlanner. It holds a flat list
     of all Stages that should be run."""
diff --git a/authentik/outposts/channels.py b/authentik/outposts/channels.py
index c8a703883..8b3f978ac 100644
--- a/authentik/outposts/channels.py
+++ b/authentik/outposts/channels.py
@@ -28,7 +28,7 @@ class WebsocketMessageInstruction(IntEnum):
     TRIGGER_UPDATE = 2
 
 
-@dataclass
+@dataclass(slots=True)
 class WebsocketMessage:
     """Complete Websocket Message that is being sent"""
 
diff --git a/authentik/policies/types.py b/authentik/policies/types.py
index aeacf7316..29ac9c3c8 100644
--- a/authentik/policies/types.py
+++ b/authentik/policies/types.py
@@ -19,7 +19,7 @@ LOGGER = get_logger()
 CACHE_PREFIX = "goauthentik.io/policies/"
 
 
-@dataclass
+@dataclass(slots=True)
 class PolicyRequest:
     """Data-class to hold policy request data"""
 
@@ -27,14 +27,14 @@ class PolicyRequest:
     http_request: Optional[HttpRequest]
     obj: Optional[Model]
     context: dict[str, Any]
-    debug: bool = False
+    debug: bool
 
     def __init__(self, user: User):
-        super().__init__()
         self.user = user
         self.http_request = None
         self.obj = None
         self.context = {}
+        self.debug = False
 
     def set_http_request(self, request: HttpRequest):  # pragma: no cover
         """Load data from HTTP request, including geoip when enabled"""
@@ -67,7 +67,7 @@ class PolicyRequest:
         return text + ">"
 
 
-@dataclass
+@dataclass(slots=True)
 class PolicyResult:
     """Result from evaluating a policy."""
 
@@ -81,7 +81,6 @@ class PolicyResult:
     log_messages: Optional[list[dict]]
 
     def __init__(self, passing: bool, *messages: str):
-        super().__init__()
         self.passing = passing
         self.messages = messages
         self.raw_result = None
diff --git a/authentik/providers/oauth2/id_token.py b/authentik/providers/oauth2/id_token.py
index 9031072c2..3d5c9544e 100644
--- a/authentik/providers/oauth2/id_token.py
+++ b/authentik/providers/oauth2/id_token.py
@@ -41,7 +41,7 @@ class SubModes(models.TextChoices):
     )
 
 
-@dataclass
+@dataclass(slots=True)
 # pylint: disable=too-many-instance-attributes
 class IDToken:
     """The primary extension that OpenID Connect makes to OAuth 2.0 to enable End-Users to be
diff --git a/authentik/providers/oauth2/views/authorize.py b/authentik/providers/oauth2/views/authorize.py
index 32850b5ea..26f664d86 100644
--- a/authentik/providers/oauth2/views/authorize.py
+++ b/authentik/providers/oauth2/views/authorize.py
@@ -74,7 +74,7 @@ SESSION_KEY_LAST_LOGIN_UID = "authentik/providers/oauth2/last_login_uid"
 ALLOWED_PROMPT_PARAMS = {PROMPT_NONE, PROMPT_CONSENT, PROMPT_LOGIN}
 
 
-@dataclass
+@dataclass(slots=True)
 # pylint: disable=too-many-instance-attributes
 class OAuthAuthorizationParams:
     """Parameters required to authorize an OAuth Client"""
diff --git a/authentik/providers/oauth2/views/introspection.py b/authentik/providers/oauth2/views/introspection.py
index 6a24d9214..ca702eda7 100644
--- a/authentik/providers/oauth2/views/introspection.py
+++ b/authentik/providers/oauth2/views/introspection.py
@@ -14,7 +14,7 @@ from authentik.providers.oauth2.utils import TokenResponse, authenticate_provide
 LOGGER = get_logger()
 
 
-@dataclass
+@dataclass(slots=True)
 class TokenIntrospectionParams:
     """Parameters for Token Introspection"""
 
diff --git a/authentik/providers/oauth2/views/token.py b/authentik/providers/oauth2/views/token.py
index aba0f0082..8a8be7f05 100644
--- a/authentik/providers/oauth2/views/token.py
+++ b/authentik/providers/oauth2/views/token.py
@@ -58,7 +58,7 @@ from authentik.stages.password.stage import PLAN_CONTEXT_METHOD, PLAN_CONTEXT_ME
 LOGGER = get_logger()
 
 
-@dataclass
+@dataclass(slots=True)
 # pylint: disable=too-many-instance-attributes
 class TokenParams:
     """Token params"""
diff --git a/authentik/providers/oauth2/views/token_revoke.py b/authentik/providers/oauth2/views/token_revoke.py
index 6989b9a54..e4a5bd078 100644
--- a/authentik/providers/oauth2/views/token_revoke.py
+++ b/authentik/providers/oauth2/views/token_revoke.py
@@ -14,7 +14,7 @@ from authentik.providers.oauth2.utils import TokenResponse, authenticate_provide
 LOGGER = get_logger()
 
 
-@dataclass
+@dataclass(slots=True)
 class TokenRevocationParams:
     """Parameters for Token Revocation"""
 
diff --git a/authentik/providers/saml/processors/authn_request_parser.py b/authentik/providers/saml/processors/authn_request_parser.py
index 83db86d2d..30eddf0d3 100644
--- a/authentik/providers/saml/processors/authn_request_parser.py
+++ b/authentik/providers/saml/processors/authn_request_parser.py
@@ -31,7 +31,7 @@ ERROR_SIGNATURE_REQUIRED_BUT_ABSENT = (
 ERROR_FAILED_TO_VERIFY = "Failed to verify signature"
 
 
-@dataclass
+@dataclass(slots=True)
 class AuthNRequest:
     """AuthNRequest Dataclass"""
 
diff --git a/authentik/providers/saml/processors/logout_request_parser.py b/authentik/providers/saml/processors/logout_request_parser.py
index 1e0251d00..df15694fd 100644
--- a/authentik/providers/saml/processors/logout_request_parser.py
+++ b/authentik/providers/saml/processors/logout_request_parser.py
@@ -12,7 +12,7 @@ from authentik.providers.saml.utils.encoding import decode_base64_and_inflate
 from authentik.sources.saml.processors.constants import NS_SAML_PROTOCOL
 
 
-@dataclass
+@dataclass(slots=True)
 class LogoutRequest:
     """Logout Request"""
 
diff --git a/authentik/providers/saml/processors/metadata_parser.py b/authentik/providers/saml/processors/metadata_parser.py
index 938127111..db284ee22 100644
--- a/authentik/providers/saml/processors/metadata_parser.py
+++ b/authentik/providers/saml/processors/metadata_parser.py
@@ -35,7 +35,7 @@ def format_pem_certificate(unformatted_cert: str) -> str:
     return "\n".join(lines)
 
 
-@dataclass
+@dataclass(slots=True)
 class ServiceProviderMetadata:
     """SP Metadata Dataclass"""