diff --git a/requirements.txt b/requirements.txt
index 22ebfc0..12c1ca2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ cryptography==2.7
 entrypoints==0.3
 flake8==3.7.5
 Flask==0.12.2
-Flask-Cors==3.0.4
+Flask-Cors==3.0.9
 Flask-JSON==0.3.2
 Flask-Script==2.0.6
 google-api-python-client==1.6.7