diff --git a/requirements.txt b/requirements.txt
index 30f32c0..ce1b711 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ certifi==2018.1.18
 chardet==3.0.4
 click==6.7
 Flask==0.12.2
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 Flask-JSON==0.3.2
 Flask-JWT-Extended==3.8.1
 flask-mongoengine==0.9.5