diff --git a/application/requirements.txt b/application/requirements.txt
index 5732809b..fa4e9178 100644
--- a/application/requirements.txt
+++ b/application/requirements.txt
@@ -39,7 +39,7 @@ langsmith==0.2.10
 lazy-object-proxy==1.10.0
 lxml==5.3.0
 markupsafe==3.0.2
-marshmallow==3.24.1
+marshmallow==3.26.1
 mpmath==1.3.0
 multidict==6.1.0
 mypy-extensions==1.0.0