diff --git a/homeassistant/components/notify/xmpp.py b/homeassistant/components/notify/xmpp.py
index 2b72dfc4f8c..e0228e967a9 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==0.2.2',
+                'pyasn1==0.2.3',
                 'pyasn1-modules==0.0.8']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/requirements_all.txt b/requirements_all.txt
index 25214b0e31d..55f2bd3ada6 100755
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -452,7 +452,7 @@ pyRFXtrx==0.17.0
 pyasn1-modules==0.0.8
 
 # homeassistant.components.notify.xmpp
-pyasn1==0.2.2
+pyasn1==0.2.3
 
 # homeassistant.components.media_player.apple_tv
 pyatv==0.2.1