diff --git a/requirements.txt b/requirements.txt
index 5a22402..fe8621b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 flask-script==2.0.6
 Flask-Testing==0.6.2
 gunicorn==19.7.1
-flask-cors==3.0.2
+flask-cors==3.0.9
 dateutils==0.6.6
 flask-restplus==0.11.0
 pybind11==2.2.3