diff --git a/homeassistant/components/device_tracker/owntracks.py b/homeassistant/components/device_tracker/owntracks.py
index 2f41d8fe0d3..6aa44c17c9a 100644
--- a/homeassistant/components/device_tracker/owntracks.py
+++ b/homeassistant/components/device_tracker/owntracks.py
@@ -21,7 +21,7 @@ from homeassistant.components import zone as zone_comp
 from homeassistant.components.device_tracker import PLATFORM_SCHEMA
 
 DEPENDENCIES = ['mqtt']
-REQUIREMENTS = ['libnacl==1.5.0']
+REQUIREMENTS = ['libnacl==1.5.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 1424959ccba..6f596cc53ae 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -347,7 +347,7 @@ keyring>=9.3,<10.0
 knxip==0.3.3
 
 # homeassistant.components.device_tracker.owntracks
-libnacl==1.5.0
+libnacl==1.5.1
 
 # homeassistant.components.dyson
 libpurecoollink==0.1.5