diff --git a/server/requirements.txt b/server/requirements.txt
index 5cf2b18..6ad9f29 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -16,7 +16,7 @@ cryptography==2.7
 docutils==0.15.2
 durationpy==0.5
 Flask==1.0.2
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 future==0.16.0
 gast==0.3.2
 google-pasta==0.1.7