diff --git a/server/requirements.txt b/server/requirements.txt
index ae974f115..a7d74f1c8 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -1,5 +1,5 @@
 flask==1.0.2
-flask_cors==3.0.7
+flask_cors==3.0.9
 psycopg2-binary==2.8.2
 gunicorn==19.9.0
 bs4==0.0.1