diff --git a/requirements.txt b/requirements.txt
index 3c1ec22..c948959 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2018.1.18
 chardet==3.0.4
 click==6.7
 Flask==0.12.2
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 Flask-RESTful==0.3.6
 html5lib==1.0.1
 idna==2.6