diff --git a/requirements.txt b/requirements.txt
index 71aaf47ddb2..7a50e1296f3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ PyYAML==6.0.3
 paho-mqtt==1.6.1
 colorama==0.4.6
 icmplib==3.0.4
-tornado==6.5.2
+tornado==6.5.3
 tzlocal==5.3.1    # from time
 tzdata>=2021.1  # from time
 pyserial==3.5