diff --git a/courses/developingapps/python/firebase/end/requirements.txt b/courses/developingapps/python/firebase/end/requirements.txt
index 6385fd3679..1535e8c216 100644
--- a/courses/developingapps/python/firebase/end/requirements.txt
+++ b/courses/developingapps/python/firebase/end/requirements.txt
@@ -1,4 +1,4 @@
-Flask==0.12
+Flask==2.3.2
 google-cloud==0.27.0
 google-cloud-core==0.27.1
 google-cloud-datastore==1.3.0