diff --git a/requirements.txt b/requirements.txt
index 0d5fc3f..bfe9475 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ entrypoints==0.2.3.post3
 enum34==1.1.6
 eventlet==0.25.0
 Flask==1.1.1
-Flask-Cors==3.0.2
+Flask-Cors==3.0.9
 Flask-SocketIO==4.2.1
 futures==3.2.0
 greenlet==0.4.15