diff --git a/requirements.txt b/requirements.txt
index 3a21984..c9637d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2017.4.17
 chardet==3.0.3
 click==6.7
 Flask==1.0.2
-Flask-Cors==3.0.6
+Flask-Cors==3.0.9
 html5lib==0.9999999
 idna==2.5
 isodate==0.5.4