diff --git a/serverless/now-flask/requirements.txt b/serverless/now-flask/requirements.txt
index 725b6395..66b5112d 100644
--- a/serverless/now-flask/requirements.txt
+++ b/serverless/now-flask/requirements.txt
@@ -1,5 +1,5 @@
 Click==7.0
-Flask==1.0.2
+Flask==2.3.2
 itsdangerous==1.1.0
 Jinja2==2.10
 MarkupSafe==1.1.0