diff --git a/requirements.txt b/requirements.txt
index c07e392..742e618 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -93,7 +93,7 @@ stack-data==0.6.3
 tenacity==8.2.3
 terminado==0.18.0
 tinycss2==1.2.1
-tornado==6.4
+tornado==6.4.1
 tqdm==4.66.1
 traitlets==5.14.0
 typing-inspect==0.9.0