diff --git a/requirements.txt b/requirements.txt
index a20e669..ef28ca8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -48,7 +48,7 @@ et-xmlfile==1.0.1
 fastcache==1.0.2
 filelock==2.0.13
 Flask==0.12.2
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 funcsigs==1.0.2
 functools32==3.2.3.post2
 futures==3.2.0