diff --git a/homeassistant/components/wemo.py b/homeassistant/components/wemo.py
index 71bb2984c7e..ba068905087 100644
--- a/homeassistant/components/wemo.py
+++ b/homeassistant/components/wemo.py
@@ -14,7 +14,7 @@ from homeassistant.helpers import config_validation as cv
 
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
 
-REQUIREMENTS = ['pywemo==0.4.7']
+REQUIREMENTS = ['pywemo==0.4.9']
 
 DOMAIN = 'wemo'
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 78f0bba24e9..b4396128f81 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -527,7 +527,7 @@ pyvera==0.2.21
 pywebpush==0.6.1
 
 # homeassistant.components.wemo
-pywemo==0.4.7
+pywemo==0.4.9
 
 # homeassistant.components.light.yeelight
 pyyeelight==1.0-beta