diff --git a/homeassistant/components/wemo.py b/homeassistant/components/wemo.py
index 93760405e08..1d0133739c3 100644
--- a/homeassistant/components/wemo.py
+++ b/homeassistant/components/wemo.py
@@ -15,7 +15,7 @@ from homeassistant.helpers import config_validation as cv
 
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
 
-REQUIREMENTS = ['pywemo==0.4.29']
+REQUIREMENTS = ['pywemo==0.4.33']
 
 DOMAIN = 'wemo'