diff --git a/requirements.txt b/requirements.txt
index 45132bd..9a6d748 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 click==6.7
-Flask==1.0.2
+Flask==2.3.2
 MarkupSafe==1.0
 azure-ai-textanalytics