diff --git a/packages/google-cloud-scheduler/samples/snippets/requirements.txt b/packages/google-cloud-scheduler/samples/snippets/requirements.txt
index ce011c6b0045..76053790f870 100644
--- a/packages/google-cloud-scheduler/samples/snippets/requirements.txt
+++ b/packages/google-cloud-scheduler/samples/snippets/requirements.txt
@@ -1,3 +1,3 @@
 Flask==1.1.1
-gunicorn==19.9.0
+gunicorn==20.0.4
 google-cloud-scheduler==1.2.1