diff --git a/docs/examples/fork-process-model/flask-gunicorn/requirements.txt b/docs/examples/fork-process-model/flask-gunicorn/requirements.txt
index 3f9f6f6454a..7e734653f59 100644
--- a/docs/examples/fork-process-model/flask-gunicorn/requirements.txt
+++ b/docs/examples/fork-process-model/flask-gunicorn/requirements.txt
@@ -1,7 +1,7 @@
 click==7.1.2
 Flask==1.1.2
 googleapis-common-protos==1.52.0
-grpcio==1.35.0
+grpcio==1.53.0
 gunicorn==20.0.4
 itsdangerous==1.1.0
 Jinja2==2.11.3