diff --git a/example/flask-gunicorn/requirements.txt b/example/flask-gunicorn/requirements.txt
index 3006930..ec161ff 100644
--- a/example/flask-gunicorn/requirements.txt
+++ b/example/flask-gunicorn/requirements.txt
@@ -1,5 +1,5 @@
 uptrace==1.41.0
-flask==2.3.2
+flask==3.1.3
 flask_sqlalchemy==2.5.1
 itsdangerous==2.1.2
 opentelemetry-instrumentation-flask==0.62b0