diff --git a/custom_components/spook/entity.py b/custom_components/spook/entity.py
index a3e64bfb..1ecadc74 100644
--- a/custom_components/spook/entity.py
+++ b/custom_components/spook/entity.py
@@ -7,7 +7,7 @@
 from homeassistant.helpers.entity import Entity, EntityDescription
 
 
-@dataclass
+@dataclass(frozen=True, kw_only=True)
 class SpookEntityDescription(EntityDescription):
     """Defines an base Spook entity description."""