diff --git a/appengine/flexible/mailjet/requirements.txt b/appengine/flexible/mailjet/requirements.txt
index ad0c8e1694b..bacd6dda1df 100644
--- a/appengine/flexible/mailjet/requirements.txt
+++ b/appengine/flexible/mailjet/requirements.txt
@@ -1,4 +1,4 @@
 Flask==1.1.1
-gunicorn==20.0.4
+gunicorn==22.0.0
 requests[security]==2.22.0
 mailjet-rest==1.3.3