diff --git a/requirements.txt b/requirements.txt
index 8cbf4bb..753ce8d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ docopt==0.6.2
 docutils==0.14
 enum34==1.1.6
 Flask==1.0
-Flask-Cors==3.0.6
+Flask-Cors==3.0.9
 Flask-Migrate==2.2.1
 Flask-SQLAlchemy==2.3.2
 idna==2.6