diff --git a/homeassistant/components/jewish_calendar/binary_sensor.py b/homeassistant/components/jewish_calendar/binary_sensor.py
index 8d06526c322..2e7edbefd3b 100644
--- a/homeassistant/components/jewish_calendar/binary_sensor.py
+++ b/homeassistant/components/jewish_calendar/binary_sensor.py
@@ -20,6 +20,8 @@ from homeassistant.util import dt as dt_util
 
 from .entity import JewishCalendarConfigEntry, JewishCalendarEntity
 
+PARALLEL_UPDATES = 0
+
 
 @dataclass(frozen=True)
 class JewishCalendarBinarySensorMixIns(BinarySensorEntityDescription):
diff --git a/homeassistant/components/jewish_calendar/sensor.py b/homeassistant/components/jewish_calendar/sensor.py
index 063818aedf3..973d354d368 100644
--- a/homeassistant/components/jewish_calendar/sensor.py
+++ b/homeassistant/components/jewish_calendar/sensor.py
@@ -24,6 +24,7 @@ from homeassistant.util import dt as dt_util
 from .entity import JewishCalendarConfigEntry, JewishCalendarEntity
 
 _LOGGER = logging.getLogger(__name__)
+PARALLEL_UPDATES = 0
 
 INFO_SENSORS: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(