diff --git a/requirements.txt b/requirements.txt
index 941629b..1d8917d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -111,7 +111,7 @@ threadpoolctl==2.1.0
 toml==0.10.1
 torch==1.6.0
 torchvision==0.7.0
-tornado==6.0.4
+tornado==6.4.1
 tqdm==4.50.0
 traitlets==5.0.4
 typed-ast==1.4.1