diff --git a/requirements.txt b/requirements.txt
index 50bc23d..d7c71bf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ docutils==0.14
 fakeredis==1.0.3
 fbmessenger==6.0.0
 Flask==1.0.3
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 future==0.17.1
 gast==0.2.2
 geographiclib==1.49