diff --git a/requirements.txt b/requirements.txt
index ab93e63..1550c05 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ 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
 geographiclib==1.49
 geopy==1.14.0
 gunicorn==19.7.1