diff --git a/requirements.txt b/requirements.txt
index b50263c..91b3346 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -87,7 +87,7 @@ soupsieve==2.4.1
 stack-data==0.6.2
 terminado==0.17.1
 tinycss2==1.2.1
-tornado==6.3.2
+tornado==6.4.1
 traitlets==5.9.0
 tzdata==2023.3
 uri-template==1.3.0