diff --git a/requirements.txt b/requirements.txt
index 1c664ec..060a6fd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -93,7 +93,7 @@ markupsafe==3.0.2
     #   flask
     #   jinja2
     #   werkzeug
-marshmallow==4.0.0
+marshmallow==4.1.2
     # via
     #   apiflask
     #   flask-marshmallow