diff --git a/requirements.txt b/requirements.txt
index 7eed362..f457e5e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ chardet==3.0.4
 click==6.7
 cryptography==2.3
 Flask==1.0.2
-Flask-Cors==3.0.6
+Flask-Cors==3.0.9
 idna==2.7
 itsdangerous==0.24
 Jinja2==2.10