diff --git a/backend/requirements.txt b/backend/requirements.txt
index 807cb92..ebe84bd 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -38,7 +38,7 @@ langchain-sqlserver
 langchain-text-splitters==0.3.9
 langsmith
 MarkupSafe==3.0.2
-marshmallow==3.26.1
+marshmallow==3.26.2
 msal==1.33.0
 msal-extensions==1.3.1
 multidict==6.6.3