diff --git a/homeassistant/components/sensor/systemmonitor.py b/homeassistant/components/sensor/systemmonitor.py
index ecd56ad05d7..3e9169d8635 100644
--- a/homeassistant/components/sensor/systemmonitor.py
+++ b/homeassistant/components/sensor/systemmonitor.py
@@ -12,7 +12,7 @@ import homeassistant.util.dt as dt_util
 from homeassistant.helpers.entity import Entity
 from homeassistant.const import STATE_ON, STATE_OFF
 
-REQUIREMENTS = ['psutil==3.2.2']
+REQUIREMENTS = ['psutil==3.4.2']
 SENSOR_TYPES = {
     'disk_use_percent': ['Disk Use', '%', 'mdi:harddisk'],
     'disk_use': ['Disk Use', 'GiB', 'mdi:harddisk'],
diff --git a/requirements_all.txt b/requirements_all.txt
index 25eb32b1d44..a64baaf6d23 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -165,7 +165,7 @@ pyowm==2.3.0
 https://github.com/jamespcole/home-assistant-nzb-clients/archive/616cad59154092599278661af17e2a9f2cf5e2a9.zip#python-sabnzbd==0.1
 
 # homeassistant.components.sensor.systemmonitor
-psutil==3.2.2
+psutil==3.4.2
 
 # homeassistant.components.sensor.temper
 https://github.com/rkabadi/temper-python/archive/3dbdaf2d87b8db9a3cd6e5585fc704537dd2d09b.zip#temperusb==1.2.3