diff --git a/requirements.in b/requirements.in
index e5ac243e..6b103a50 100644
--- a/requirements.in
+++ b/requirements.in
@@ -11,6 +11,6 @@ PyYAML==6.0.2
 pytest==7.2.2
 pytest-mock==3.8.2
 itsdangerous==2.1.2
-marshmallow==3.19.0
+marshmallow==3.26.2
 certifi==2024.7.4
 jinja2==3.1.6
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 357c82ae..903595e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -56,7 +56,7 @@ markupsafe==2.1.2
     # via
     #   jinja2
     #   werkzeug
-marshmallow==3.19.0
+marshmallow==3.26.2
     # via -r requirements.in
 packaging==23.1
     # via