diff --git a/requirements.txt b/requirements.txt
index c7af86a..b776a10 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ fastcache==1.0.2
 fastprogress==0.1.21
 filelock==2.0.13
 Flask==0.12.2
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 Flask-JSON==0.3.3
 gast==0.2.2
 gensim==3.7.2