diff --git a/requirements.txt b/requirements.txt
index 7a533ec..88e0f75 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ chardet==2.3.0
 click==6.7
 Cython==0.29.13
 Flask==0.12.1
-Flask-Cors==3.0.2
+Flask-Cors==3.0.9
 future==0.16.0
 itsdangerous==0.24
 Jinja2==2.9.6