diff --git a/requirements.txt b/requirements.txt
index 9c99ad8..ff0de2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 click==6.7
 et-xmlfile==1.0.1
 Flask
-Flask-Cors==3.0.3
+Flask-Cors==4.0.1
 jsonschema==2.6.0
 nose==1.3.7
 pika==0.11.2