diff --git a/homeassistant/components/apcupsd/binary_sensor.py b/homeassistant/components/apcupsd/binary_sensor.py
index bc214e56d80..77b2b8591e5 100644
--- a/homeassistant/components/apcupsd/binary_sensor.py
+++ b/homeassistant/components/apcupsd/binary_sensor.py
@@ -17,6 +17,8 @@ from homeassistant.helpers.update_coordinator import CoordinatorEntity
 from .const import DOMAIN
 from .coordinator import APCUPSdCoordinator
 
+PARALLEL_UPDATES = 0
+
 _LOGGER = logging.getLogger(__name__)
 _DESCRIPTION = BinarySensorEntityDescription(
     key="statflag",
diff --git a/homeassistant/components/apcupsd/sensor.py b/homeassistant/components/apcupsd/sensor.py
index 008171cfe3c..6ac33072856 100644
--- a/homeassistant/components/apcupsd/sensor.py
+++ b/homeassistant/components/apcupsd/sensor.py
@@ -28,6 +28,8 @@ from homeassistant.helpers.update_coordinator import CoordinatorEntity
 from .const import DOMAIN
 from .coordinator import APCUPSdCoordinator
 
+PARALLEL_UPDATES = 0
+
 _LOGGER = logging.getLogger(__name__)
 
 SENSORS: dict[str, SensorEntityDescription] = {