diff --git a/requirements.txt b/requirements.txt
index 5b50df1..e6c7d49 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ aniso8601==8.0.0
 click==7.1.2
 esprima==4.0.1
 Flask==1.1.2
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 Flask-RESTful==0.3.8
 gunicorn==20.0.4
 itsdangerous==1.1.0