diff --git a/application/single_app/requirements.txt b/application/single_app/requirements.txt
index ec681756..005e1ab7 100644
--- a/application/single_app/requirements.txt
+++ b/application/single_app/requirements.txt
@@ -10,7 +10,7 @@ openai==1.109.1
 docx2txt==0.8
 olefile==0.47
 Markdown==3.8.1
-bleach==6.1.0
+bleach==6.4.0
 azure-cosmos==4.9.0
 msal==1.31.0
 Flask-Session==0.8.0