diff --git a/requirements.txt b/requirements.txt
index d2f8aee..1de4988 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Click==7.0
 dominate==2.3.5
 Flask==1.0
 Flask-Bootstrap==3.3.7.1
-Flask-Cors==3.0.9
+Flask-Cors==4.0.1
 flask-nav==0.6
 Flask-RESTful==0.3.7
 Flask-WTF==0.14.2