diff --git a/requirements-app.txt b/requirements-app.txt
index eb49e1e68..b2b2b544d 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -14,7 +14,7 @@ eventlet==0.24.1
 gunicorn==19.7.1  # pyup: ignore, >19.8 breaks eventlet patching
 iso8601==0.1.12
 jsonschema==3.0.1
-marshmallow-sqlalchemy==0.16.2
+marshmallow-sqlalchemy==0.16.3
 marshmallow==2.19.2
 psycopg2-binary==2.8.2
 PyJWT==1.7.1