diff --git a/appengine/flexible/tasks/requirements.txt b/appengine/flexible/tasks/requirements.txt
index c87b957c962..fe7518c023b 100644
--- a/appengine/flexible/tasks/requirements.txt
+++ b/appengine/flexible/tasks/requirements.txt
@@ -1,4 +1,4 @@
 Flask==1.1.1
-gunicorn==20.0.4
+gunicorn==22.0.0
 google-cloud-tasks==1.3.0
 googleapis-common-protos==1.6.0