diff --git a/requirements.txt b/requirements.txt
index 517dbbf..28e641e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,3 +11,4 @@ pytz==2021.1
 six==1.15.0
 tornado==6.1
 tzlocal==2.1
+redis==3.5.3