diff --git a/requirements.txt b/requirements.txt
index ac2a13b..6cca9bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ et-xmlfile==1.0.1
 fastcache==1.0.2
 filelock==2.0.13
 Flask==1.0
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 gevent==1.2.2
 glob2==0.6
 gmpy2==2.0.8