diff --git a/homeassistant/components/notify/sendgrid.py b/homeassistant/components/notify/sendgrid.py
index 6258f6272c0..038c7cd8ee9 100644
--- a/homeassistant/components/notify/sendgrid.py
+++ b/homeassistant/components/notify/sendgrid.py
@@ -13,7 +13,7 @@ from homeassistant.components.notify import (
 from homeassistant.const import (CONF_API_KEY, CONF_SENDER, CONF_RECIPIENT)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['sendgrid==4.2.0']
+REQUIREMENTS = ['sendgrid==4.2.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 482ade00139..9d428cb4d27 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -850,7 +850,7 @@ schiene==0.18
 scsgate==0.1.0
 
 # homeassistant.components.notify.sendgrid
-sendgrid==4.2.0
+sendgrid==4.2.1
 
 # homeassistant.components.light.sensehat
 # homeassistant.components.sensor.sensehat