diff --git a/requirements.txt b/requirements.txt
index d01b867..ff9acd9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ astor==0.8.1
 certifi==2019.11.28
 click==7.1.1
 Flask==1.1.1
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 gast==0.3.3
 google-pasta==0.2.0
 grpcio==1.27.2