diff --git a/homeassistant/components/onewire/binary_sensor.py b/homeassistant/components/onewire/binary_sensor.py
index 8cd34273d45..d836bf945a9 100644
--- a/homeassistant/components/onewire/binary_sensor.py
+++ b/homeassistant/components/onewire/binary_sensor.py
@@ -20,7 +20,7 @@ from .const import DEVICE_KEYS_0_3, DEVICE_KEYS_0_7, DEVICE_KEYS_A_B, READ_MODE_
 from .entity import OneWireEntity, OneWireEntityDescription
 from .onewirehub import OneWireHub
 
-PARALLEL_UPDATES = 0
+PARALLEL_UPDATES = 1
 SCAN_INTERVAL = timedelta(seconds=30)
 
 
diff --git a/homeassistant/components/onewire/sensor.py b/homeassistant/components/onewire/sensor.py
index 29ba2475a9d..84aef01f888 100644
--- a/homeassistant/components/onewire/sensor.py
+++ b/homeassistant/components/onewire/sensor.py
@@ -42,7 +42,7 @@ from .const import (
 from .entity import OneWireEntity, OneWireEntityDescription
 from .onewirehub import OneWireHub
 
-PARALLEL_UPDATES = 0
+PARALLEL_UPDATES = 1
 SCAN_INTERVAL = timedelta(seconds=30)
 
 
diff --git a/homeassistant/components/onewire/switch.py b/homeassistant/components/onewire/switch.py
index 071d739629e..f799a7fd1de 100644
--- a/homeassistant/components/onewire/switch.py
+++ b/homeassistant/components/onewire/switch.py
@@ -17,7 +17,7 @@ from .const import DEVICE_KEYS_0_3, DEVICE_KEYS_0_7, DEVICE_KEYS_A_B, READ_MODE_
 from .entity import OneWireEntity, OneWireEntityDescription
 from .onewirehub import OneWireHub
 
-PARALLEL_UPDATES = 0
+PARALLEL_UPDATES = 1
 SCAN_INTERVAL = timedelta(seconds=30)