diff --git a/requirement.txt b/requirement.txt
index 43762b2..64f4aa1 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -19,7 +19,7 @@ eventlet==0.24.1
 fastcache==1.0.2
 filelock==3.0.4
 Flask==1.0.2
-Flask-Cors==3.0.4
+Flask-Cors==3.0.9
 gevent==1.3.0
 glob2==0.6
 gmpy2==2.0.8