diff --git a/setup.py b/setup.py
index 3ebef72c..8f12da64 100644
--- a/setup.py
+++ b/setup.py
@@ -48,8 +48,8 @@ install_requires = [
     'psycopg2==2.7.1',
     'arrow==0.10.0',
     'six==1.10.0',
+    'marshmallow-sqlalchemy==0.13.1',
     'gunicorn==19.7.1',
-    'marshmallow-sqlalchemy==0.12.1',
     'marshmallow==2.13.4',
     'cryptography==1.7',
     'pyjwt==1.4.2',