diff --git a/requirements.txt b/requirements.txt
index a18882f..d00dad0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ defusedxml==0.6.0
 entrypoints==0.3
 Fiona==1.8.11
 Flask==1.1.1
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 future==0.17.1
 geopandas==0.6.1
 idna==2.8