diff --git a/requirements.txt b/requirements.txt
index 830ca34..6715290 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ entrypoints==0.2.3
 fakeredis==0.10.3
 fbmessenger==5.1.0
 Flask==1.0.2
-Flask-Cors==3.0.4
+Flask-Cors==3.0.9
 future==0.16.0
 gast==0.2.0
 gevent==1.3.1