diff --git a/requirements.txt b/requirements.txt
index 91b21c1..3f89ff5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ chardet==3.0.4
 click==6.7
 Flask==0.12.2
 Flask-Compress==1.4.0
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 Flask-HTTPAuth==3.2.3
 gevent==1.2.2
 greenlet==0.4.13