diff --git a/requirements.txt b/requirements.txt
index ede891a..2c41ba0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -161,7 +161,7 @@ terminado==0.17.1
 threadpoolctl==3.1.0
 tinycss2==1.2.1
 tomli==2.0.1
-tornado==6.3.2
+tornado==6.4.1
 tqdm==4.65.0
 traitlets==5.9.0
 typing-inspect==0.8.0