diff --git a/homeassistant/components/sensor/qnap.py b/homeassistant/components/sensor/qnap.py
index 22f8d4c37c0..29eb8cd6749 100644
--- a/homeassistant/components/sensor/qnap.py
+++ b/homeassistant/components/sensor/qnap.py
@@ -17,7 +17,7 @@ from homeassistant.const import (
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['qnapstats==0.2.6']
+REQUIREMENTS = ['qnapstats==0.2.7']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -173,7 +173,7 @@ class QNAPStatsAPI:
 
         protocol = "https" if config.get(CONF_SSL) else "http"
         self._api = QNAPStats(
-            protocol + "://" + config.get(CONF_HOST),
+            '{}://{}'.format(protocol, config.get(CONF_HOST)),
             config.get(CONF_PORT),
             config.get(CONF_USERNAME),
             config.get(CONF_PASSWORD),
diff --git a/requirements_all.txt b/requirements_all.txt
index db244cc8cfb..49fc3b42466 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1217,7 +1217,7 @@ pyxeoma==1.4.0
 pyzabbix==0.7.4
 
 # homeassistant.components.sensor.qnap
-qnapstats==0.2.6
+qnapstats==0.2.7
 
 # homeassistant.components.rachio
 rachiopy==0.1.3