diff --git a/requirements.txt b/requirements.txt
index 9732411..0ba319d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ flake8==3.6.0
 flake8-docstrings==1.3.0
 flake8-polyfill==1.0.2
 Flask==1.0.2
-Flask-Cors==3.0.7
+Flask-Cors==3.0.9
 idna==2.8
 isort==4.3.4
 itsdangerous==1.1.0