diff --git a/requirements.txt b/requirements.txt
index e1d1c3d..7d78689 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -62,7 +62,7 @@ fastcache==1.0.2
 filelock==3.0.10
 findspark==1.3.0
 flask==1.0.2
-flask_cors==3.0.7
+flask_cors==3.0.9
 folium==0.10.1
 funcparserlib==0.3.6
 future==0.18.2