diff --git a/homeassistant/components/notify/xmpp.py b/homeassistant/components/notify/xmpp.py
index 27bfd2aa607..8befb709ddb 100644
--- a/homeassistant/components/notify/xmpp.py
+++ b/homeassistant/components/notify/xmpp.py
@@ -15,7 +15,7 @@ from homeassistant.const import CONF_PASSWORD, CONF_SENDER, CONF_RECIPIENT
 
 REQUIREMENTS = ['sleekxmpp==1.3.1',
                 'dnspython3==1.15.0',
-                'pyasn1==0.1.9',
+                'pyasn1==0.2.1',
                 'pyasn1-modules==0.0.8']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/requirements_all.txt b/requirements_all.txt
index 7fd6eee2785..da99ab3ad80 100755
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -412,7 +412,7 @@ pyRFXtrx==0.16.1
 pyasn1-modules==0.0.8
 
 # homeassistant.components.notify.xmpp
-pyasn1==0.1.9
+pyasn1==0.2.1
 
 # homeassistant.components.device_tracker.bbox
 # homeassistant.components.sensor.bbox