diff --git a/appengine/flexible/sendgrid/requirements.txt b/appengine/flexible/sendgrid/requirements.txt
index a7a89a1d047..2123490a573 100644
--- a/appengine/flexible/sendgrid/requirements.txt
+++ b/appengine/flexible/sendgrid/requirements.txt
@@ -1,3 +1,3 @@
 Flask==0.12.2
-sendgrid==4.2.1
+sendgrid==5.0.0
 gunicorn==19.7.1
diff --git a/appengine/standard/sendgrid/requirements.txt b/appengine/standard/sendgrid/requirements.txt
index db2abc67330..e262556ef75 100644
--- a/appengine/standard/sendgrid/requirements.txt
+++ b/appengine/standard/sendgrid/requirements.txt
@@ -1 +1 @@
-sendgrid==4.2.1
+sendgrid==5.0.0