diff --git a/homeassistant/components/trafikverket_weatherstation/sensor.py b/homeassistant/components/trafikverket_weatherstation/sensor.py
index 6fd63c83f4e..bd15c34ff01 100644
--- a/homeassistant/components/trafikverket_weatherstation/sensor.py
+++ b/homeassistant/components/trafikverket_weatherstation/sensor.py
@@ -43,20 +43,13 @@ PRECIPITATION_TYPE = [
 ]
 
 
-@dataclass(frozen=True)
-class TrafikverketRequiredKeysMixin:
-    """Mixin for required keys."""
+@dataclass(frozen=True, kw_only=True)
+class TrafikverketSensorEntityDescription(SensorEntityDescription):
+    """Describes Trafikverket sensor entity."""
 
     value_fn: Callable[[WeatherStationInfo], StateType | datetime]
 
 
-@dataclass(frozen=True)
-class TrafikverketSensorEntityDescription(
-    SensorEntityDescription, TrafikverketRequiredKeysMixin
-):
-    """Describes Trafikverket sensor entity."""
-
-
 def add_utc_timezone(date_time: datetime | None) -> datetime | None:
     """Add UTC timezone if datetime."""
     if date_time: