diff --git a/requirements.txt b/requirements.txt
index 60bd4c1..286b389 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,6 @@ Flask==0.9
 Flask-WTF==0.8
 Jinja2==2.10.3
 MarkupSafe==1.1.1
-redis==3.3.11
+redis==4.5.3
 Werkzeug==0.16.0
 WTForms==2.2.1