diff --git a/End_to_end_Solutions/AOAISearchDemo/app/backend/requirements.txt b/End_to_end_Solutions/AOAISearchDemo/app/backend/requirements.txt
index 42e3fee2..12c07681 100644
--- a/End_to_end_Solutions/AOAISearchDemo/app/backend/requirements.txt
+++ b/End_to_end_Solutions/AOAISearchDemo/app/backend/requirements.txt
@@ -1,5 +1,5 @@
 azure-identity==1.13.0b3
-Flask==2.2.2
+Flask==2.2.5
 langchain==0.0.139
 openai==0.27.4
 azure-search-documents==11.4.0b3