diff --git a/code_examples/flask/myapp-2/requirements.txt b/code_examples/flask/myapp-2/requirements.txt
index c70b07a..2681c0d 100644
--- a/code_examples/flask/myapp-2/requirements.txt
+++ b/code_examples/flask/myapp-2/requirements.txt
@@ -1,3 +1,3 @@
-flask==0.12.3
+flask==2.3.2
 bokeh==0.12.14
 Jinja2>=2.10.1