diff --git a/requirements.txt b/requirements.txt
index 3272566..cf39559 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ chardet==3.0.4
 click==6.7
 docopt==0.6.2
 Flask==1.0
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 idna==2.6
 itsdangerous==0.24
 Jinja2==2.9.6