diff --git a/src/publishers/requirements.txt b/src/publishers/requirements.txt
index 55ff969a..f9a851ff 100644
--- a/src/publishers/requirements.txt
+++ b/src/publishers/requirements.txt
@@ -4,7 +4,7 @@ Flask-Cors==5.0.0
 Flask-RESTful==0.3.10
 gevent==24.11.1
 gunicorn==23.0.0
-marshmallow==3.25.1
+marshmallow==3.26.0
 oauth2client==4.1.3
 paramiko==3.5.0
 python-dotenv==1.0.1