diff --git a/requirements.txt b/requirements.txt
index 3d018bd..2167a7b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ Click==7.0
 cryptography==2.5
 flasgger==0.9.2
 Flask==1.0.2
-Flask-Cors==3.0.7
+Flask-Cors==3.0.9
 Flask-RESTful==0.3.7
 google-auth==1.6.3
 idna==2.8