diff --git a/example/flask-gunicorn/requirements.txt b/example/flask-gunicorn/requirements.txt
index 08d6e42..bcbb674 100644
--- a/example/flask-gunicorn/requirements.txt
+++ b/example/flask-gunicorn/requirements.txt
@@ -4,4 +4,4 @@ flask_sqlalchemy==2.5.1
 itsdangerous==2.1.2
 opentelemetry-instrumentation-flask==0.38b0
 opentelemetry-instrumentation-sqlalchemy==0.38b0
-gunicorn==22.0.0
+gunicorn==23.0.0