diff --git a/homeassistant/components/device_tracker/snmp.py b/homeassistant/components/device_tracker/snmp.py
index 4cbaa557517..6e8b07e6bab 100644
--- a/homeassistant/components/device_tracker/snmp.py
+++ b/homeassistant/components/device_tracker/snmp.py
@@ -19,7 +19,7 @@ from homeassistant.util import Throttle
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pysnmp==4.3.3']
+REQUIREMENTS = ['pysnmp==4.3.4']
 
 CONF_COMMUNITY = 'community'
 CONF_AUTHKEY = 'authkey'
diff --git a/homeassistant/components/sensor/snmp.py b/homeassistant/components/sensor/snmp.py
index 6a991f28898..b72398c3736 100644
--- a/homeassistant/components/sensor/snmp.py
+++ b/homeassistant/components/sensor/snmp.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pysnmp==4.3.3']
+REQUIREMENTS = ['pysnmp==4.3.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 4bf689d904c..23b29610865 100755
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -558,7 +558,7 @@ pysma==0.1.3
 
 # homeassistant.components.device_tracker.snmp
 # homeassistant.components.sensor.snmp
-pysnmp==4.3.3
+pysnmp==4.3.4
 
 # homeassistant.components.media_player.clementine
 python-clementine-remote==1.0.1