diff --git a/homeassistant/components/bluetooth/passive_update_processor.py b/homeassistant/components/bluetooth/passive_update_processor.py
index 39338e94a77..b4ac15fc28c 100644
--- a/homeassistant/components/bluetooth/passive_update_processor.py
+++ b/homeassistant/components/bluetooth/passive_update_processor.py
@@ -119,7 +119,7 @@ def serialize_entity_description(description: EntityDescription) -> dict[str, An
     }
 
 
-@dataclasses.dataclass(slots=True, frozen=True)
+@dataclasses.dataclass(slots=True, frozen=False)
 class PassiveBluetoothDataUpdate(Generic[_T]):
     """Generic bluetooth data."""