diff --git a/homeassistant/components/trafikverket_ferry/sensor.py b/homeassistant/components/trafikverket_ferry/sensor.py
index 5a13159ecfd..44176ab82b7 100644
--- a/homeassistant/components/trafikverket_ferry/sensor.py
+++ b/homeassistant/components/trafikverket_ferry/sensor.py
@@ -31,6 +31,8 @@ ATTR_OTHER_INFO = "other_info"
 
 SCAN_INTERVAL = timedelta(minutes=5)
 
+PARALLEL_UPDATES = 0
+
 
 @dataclass(frozen=True, kw_only=True)
 class TrafikverketSensorEntityDescription(SensorEntityDescription):