diff --git a/homeassistant/components/sensor/cpuspeed.py b/homeassistant/components/sensor/cpuspeed.py
index 25b7bba506c932b2a2b1ea34e588ec7e3e1ff88f..c39ae43aef0ad5ac9c9295e5dff557466e9ef908 100644
--- a/homeassistant/components/sensor/cpuspeed.py
+++ b/homeassistant/components/sensor/cpuspeed.py
@@ -13,7 +13,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['py-cpuinfo==3.3.0']
+REQUIREMENTS = ['py-cpuinfo==4.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 95cb8c5462a5370070a3b6f8b833c33ffb32b1e5..c1a44c8535b5a36db54d5cbbac2fc476cbae32a7 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -648,7 +648,7 @@ py-august==0.4.0
 py-canary==0.5.0
 
 # homeassistant.components.sensor.cpuspeed
-py-cpuinfo==3.3.0
+py-cpuinfo==4.0.0
 
 # homeassistant.components.melissa
 py-melissa-climate==1.0.6