diff --git a/src/publishers/requirements.txt b/src/publishers/requirements.txt
index 280dd08a4..1cc81b611 100644
--- a/src/publishers/requirements.txt
+++ b/src/publishers/requirements.txt
@@ -4,7 +4,7 @@ Flask-Cors==4.0.0
 Flask-RESTful==0.3.10
 gevent==24.2.1
 gunicorn==21.2.0
-marshmallow==3.21.0
+marshmallow==3.21.1
 marshmallow-enum==1.5.1
 oauth2client==4.1.3
 paramiko==3.4.0