diff --git a/homeassistant/components/sensor/forecast.py b/homeassistant/components/sensor/forecast.py
index c1fbb486efb..dbb4962450a 100644
--- a/homeassistant/components/sensor/forecast.py
+++ b/homeassistant/components/sensor/forecast.py
@@ -11,7 +11,7 @@ from homeassistant.const import CONF_API_KEY, TEMP_CELCIUS
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['python-forecastio==1.3.3']
+REQUIREMENTS = ['python-forecastio==1.3.4']
 _LOGGER = logging.getLogger(__name__)
 
 # Sensor types are defined like so:
diff --git a/requirements_all.txt b/requirements_all.txt
index ed485902555..90c275e0d80 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -186,7 +186,7 @@ pyowm==2.3.0
 pysnmp==4.2.5
 
 # homeassistant.components.sensor.forecast
-python-forecastio==1.3.3
+python-forecastio==1.3.4
 
 # homeassistant.components.media_player.mpd
 python-mpd2==0.5.5