diff --git a/requirements.txt b/requirements.txt
index 78e34e5..e710e1c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ constantly==15.1.0
 cryptography==2.2.2
 enum34==1.1.6
 Flask==1.0.2
-Flask-Cors==3.0.4
+Flask-Cors==3.0.9
 Flask-Jsonpify==1.5.0
 Flask-RESTful==0.3.6
 hyperlink==18.0.0