diff --git a/homeassistant/components/device_tracker/snmp.py b/homeassistant/components/device_tracker/snmp.py
index add027e1823765..49dfc81112f986 100644
--- a/homeassistant/components/device_tracker/snmp.py
+++ b/homeassistant/components/device_tracker/snmp.py
@@ -14,7 +14,7 @@
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-REQUIREMENTS = ['pysnmp==4.4.2']
+REQUIREMENTS = ['pysnmp==4.4.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sensor/snmp.py b/homeassistant/components/sensor/snmp.py
index 982e7d9559b2a9..b2318564d16e04 100644
--- a/homeassistant/components/sensor/snmp.py
+++ b/homeassistant/components/sensor/snmp.py
@@ -16,7 +16,7 @@
     CONF_HOST, CONF_NAME, CONF_PORT, CONF_UNIT_OF_MEASUREMENT, STATE_UNKNOWN,
     CONF_VALUE_TEMPLATE)
 
-REQUIREMENTS = ['pysnmp==4.4.2']
+REQUIREMENTS = ['pysnmp==4.4.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/switch/snmp.py b/homeassistant/components/switch/snmp.py
index 99ba9d8cd5455d..f2d536c5961ad0 100644
--- a/homeassistant/components/switch/snmp.py
+++ b/homeassistant/components/switch/snmp.py
@@ -13,7 +13,7 @@
     CONF_HOST, CONF_NAME, CONF_PORT, CONF_PAYLOAD_ON, CONF_PAYLOAD_OFF)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pysnmp==4.4.2']
+REQUIREMENTS = ['pysnmp==4.4.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 5eb4361a436cd9..2c290669d18b41 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -820,7 +820,7 @@ pysma==0.1.3
 # homeassistant.components.device_tracker.snmp
 # homeassistant.components.sensor.snmp
 # homeassistant.components.switch.snmp
-pysnmp==4.4.2
+pysnmp==4.4.3
 
 # homeassistant.components.media_player.liveboxplaytv
 pyteleloisirs==3.3