diff --git a/requirements.txt b/requirements.txt
index ddf9c9e..9d9d719 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -89,7 +89,7 @@ colorlog==3.1.4
 cryptography==2.3
 entrypoints==0.2.3
 Flask==1.0
-Flask-Cors==3.0.2
+Flask-Cors==3.0.9
 Flask-Login==0.4.0
 flask-marshmallow==0.7.0
 Flask-OAuthlib==0.9.4