diff --git a/homeassistant/components/apcupsd/binary_sensor.py b/homeassistant/components/apcupsd/binary_sensor.py
index bc214e56d803f4833ddfc460c3f68de3b625b169..77b2b8591e5184edd4c35f5ffa2828bdfe01e2b0 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 008171cfe3ca66088e98216d502ff58390a836f8..6ac330728566c8c6c204c406497b10d749ac8a6e 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] = {