diff --git a/flask_helloworld/requirements.txt b/flask_helloworld/requirements.txt
index 6d35938..e9a3010 100644
--- a/flask_helloworld/requirements.txt
+++ b/flask_helloworld/requirements.txt
@@ -1,2 +1,2 @@
-flask==1.0.2
+flask==2.3.2
 itsdangerous==2.0.1