diff --git a/homeassistant/components/knx.py b/homeassistant/components/knx.py
index 6aef3ea4ec5..abedc9862c2 100644
--- a/homeassistant/components/knx.py
+++ b/homeassistant/components/knx.py
@@ -17,7 +17,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import async_track_state_change
 from homeassistant.helpers.script import Script
 
-REQUIREMENTS = ['xknx==0.8.5']
+REQUIREMENTS = ['xknx==0.9.1']
 
 DOMAIN = "knx"
 DATA_KNX = "data_knx"
diff --git a/requirements_all.txt b/requirements_all.txt
index 8d86af1429a..f8ff629a9ba 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1557,7 +1557,7 @@ xbee-helper==0.0.7
 xboxapi==0.1.1
 
 # homeassistant.components.knx
-xknx==0.8.5
+xknx==0.9.1
 
 # homeassistant.components.media_player.bluesound
 # homeassistant.components.sensor.startca