diff --git a/samples/aci-blob-storage/python/src/requirements.txt b/samples/aci-blob-storage/python/src/requirements.txt
index 97a7234..21c0934 100644
--- a/samples/aci-blob-storage/python/src/requirements.txt
+++ b/samples/aci-blob-storage/python/src/requirements.txt
@@ -1,3 +1,3 @@
-Flask==3.1.0
+Flask==3.1.3
 azure-storage-blob==12.25.1
 gunicorn==23.0.0