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'
 
diff --git a/requirements_all.txt b/requirements_all.txt
index d570d3f655d..a32185c05d6 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1327,7 +1327,7 @@ pyvlx==0.1.3
 pywebpush==1.6.0
 
 # homeassistant.components.wemo
-pywemo==0.4.29
+pywemo==0.4.33
 
 # homeassistant.components.camera.xeoma
 pyxeoma==1.4.0