diff --git a/requirements.txt b/requirements.txt
index e3773a0..daf2612 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@ Flask-SQLAlchemy==2.4.1
 SQLAlchemy==1.3.13
 Flask-Script==2.0.6
 py-ms==2.1.0
-marshmallow==3.4.0
+marshmallow==3.5.0
 marshmallow-sqlalchemy==0.22.2
\ No newline at end of file