diff --git a/homeassistant/components/sun.py b/homeassistant/components/sun.py
index 663ba03aa90..303e352d55a 100644
--- a/homeassistant/components/sun.py
+++ b/homeassistant/components/sun.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.event import (
     track_point_in_utc_time, track_utc_time_change)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['astral==0.8.1']
+REQUIREMENTS = ['astral==0.9']
 DOMAIN = "sun"
 ENTITY_ID = "sun.sun"
 
diff --git a/requirements_all.txt b/requirements_all.txt
index b919957e5b0..d07729f6950 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -184,7 +184,7 @@ xmltodict
 python-statsd==1.7.2
 
 # homeassistant.components.sun
-astral==0.8.1
+astral==0.9
 
 # homeassistant.components.switch.edimax
 https://github.com/rkabadi/pyedimax/archive/365301ce3ff26129a7910c501ead09ea625f3700.zip#pyedimax==0.1