diff --git a/requirements.txt b/requirements.txt
index 6d4b234..6f287c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ Flask-BabelEx==0.9.4
 Flask-Cors==4.0.1
 Flask-Login==0.6.3
 Flask-Mail==0.9.1
-flask-marshmallow==0.15.0
+flask-marshmallow==1.2.1
 Flask-Migrate==4.0.4
 Flask-Principal==0.4.0
 Flask-Security-Too==5.3.3