diff --git a/requirements.txt b/requirements.txt
index d19fb81..84021f5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ dill==0.2.5
 docutils==0.13.1
 et-xmlfile==1.0.1
 fastcache==1.0.2
-Flask-Cors==3.0.2
+Flask-Cors==3.0.9
 gevent==1.2.1
 greenlet==0.4.11
 h5py==2.6.0