diff --git a/requirements.txt b/requirements.txt
index 0302a97b83d54973ad6c97c8eaa4220c86b0ade1..d1ffe2e564a35b4e3e48dc1dc60a8d69ee26c7ba 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,7 @@ Flask==1.1.1
 Flask-SQLAlchemy==2.4.1
 Flask-RESTful==0.3.8
 flask-marshmallow==0.11.0
+flask-cors==3.0.8
 marshmallow-sqlalchemy==0.22.2
 apispec==3.3.0
 apispec-webframeworks==0.5.2