diff --git a/tf_quant_finance/examples/demos/option_pricing_basic/downloader/requirements.txt b/tf_quant_finance/examples/demos/option_pricing_basic/downloader/requirements.txt
index 33c0a128d..e73b5fbd2 100644
--- a/tf_quant_finance/examples/demos/option_pricing_basic/downloader/requirements.txt
+++ b/tf_quant_finance/examples/demos/option_pricing_basic/downloader/requirements.txt
@@ -1,4 +1,4 @@
-Flask==1.1.2
+Flask==2.2.5
 requests==2.23.0
 google-cloud-storage==1.28.0
 absl-py==0.9.0