diff --git a/homeassistant/components/device_tracker/snmp.py b/homeassistant/components/device_tracker/snmp.py
index f26ce6efc66..f6df3f0a509 100644
--- a/homeassistant/components/device_tracker/snmp.py
+++ b/homeassistant/components/device_tracker/snmp.py
@@ -18,7 +18,7 @@ from homeassistant.util import Throttle
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
 
 _LOGGER = logging.getLogger(__name__)
-REQUIREMENTS = ['pysnmp==4.3.2']
+REQUIREMENTS = ['pysnmp==4.2.5']
 
 CONF_COMMUNITY = "community"
 CONF_BASEOID = "baseoid"
diff --git a/requirements_all.txt b/requirements_all.txt
index a1a80304f32..ed485902555 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -183,7 +183,7 @@ pynx584==0.2
 pyowm==2.3.0
 
 # homeassistant.components.device_tracker.snmp
-pysnmp==4.3.2
+pysnmp==4.2.5
 
 # homeassistant.components.sensor.forecast
 python-forecastio==1.3.3