diff --git a/homeassistant/components/lock/nello.py b/homeassistant/components/lock/nello.py
index 47a8e3146aa..04030c92425 100644
--- a/homeassistant/components/lock/nello.py
+++ b/homeassistant/components/lock/nello.py
@@ -13,7 +13,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.lock import (LockDevice, PLATFORM_SCHEMA)
 from homeassistant.const import (CONF_PASSWORD, CONF_USERNAME)
 
-REQUIREMENTS = ['pynello==1.5']
+REQUIREMENTS = ['pynello==1.5.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index de8a73b3bc0..a80b9de6d3d 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -667,7 +667,7 @@ pymyq==0.0.8
 pymysensors==0.11.1
 
 # homeassistant.components.lock.nello
-pynello==1.5
+pynello==1.5.1
 
 # homeassistant.components.device_tracker.netgear
 pynetgear==0.3.3