diff --git a/appengine/requirements.txt b/appengine/requirements.txt
index c5270c9..a7ea4b1 100644
--- a/appengine/requirements.txt
+++ b/appengine/requirements.txt
@@ -1,2 +1,2 @@
-Flask==1.1.1
+Flask==2.3.2
 google-cloud-datastore==1.10.0