diff --git a/requirements.txt b/requirements.txt
index 279bfd5..f36b6c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ codecov==2.0.15
 coverage==4.5.4
 flake8==3.7.9
 Flask==1.1.1
-flask-cors==3.0.8
+flask-cors==3.0.9
 furl==2.1.0
 google==2.0.3
 matplotlib==3.2.1