diff --git a/requirements.txt b/requirements.txt
index abe7729..d0ec722 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ delegator.py==0.0.13
 docutils==0.13.1
 durationpy==0.4
 Flask==0.12.2
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 future==0.16.0
 futures==3.1.1
 git-lambda==1.1.3