diff --git a/requirements.txt b/requirements.txt
index 11be5f617..ebbacb246 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ blinker==1.4
 celery==3.1.17
 coverage==4.5.1
 Flask==0.12.2
-Flask-Cors==3.0.4
+Flask-Cors==3.0.9
 Flask-JSON==0.3.2
 Flask-Script==2.0.6
 Flask-GraphQL==1.4.1