diff --git a/requirements.txt b/requirements.txt
index 16f02a5..8e261ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ certifi==2017.7.27.1
 chardet==3.0.4
 click==6.7
 Flask==0.10.1
-Flask-Cors==2.1.2
+Flask-Cors==3.0.9
 httplib2==0.9.1
 ibmiotf==0.1.1
 idna==2.6