diff --git a/requirements.txt b/requirements.txt
index bd93b8c..835463a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ aniso8601==1.2.0
 click==6.7
 deap==1.0.2
 Flask==0.12
-Flask-Cors==3.0.2
+Flask-Cors==3.0.9
 Flask-HTTPAuth==3.2.1
 Flask-RESTful==0.3.5
 itsdangerous==0.24