diff --git a/http_service/requirements.txt b/http_service/requirements.txt
index 29769d0d..9bc4a356 100644
--- a/http_service/requirements.txt
+++ b/http_service/requirements.txt
@@ -5,6 +5,6 @@ Flask==1.1.1
 flask-apispec==0.8.5
 flask-cors==3.0.8
 gunicorn==20.0.4
-marshmallow==3.4.0
+marshmallow==3.5.0
 rq==1.2.2
 rq-dashboard==0.6.1