diff --git a/requirements.txt b/requirements.txt
index e1fc7c5e..af55754f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -87,7 +87,7 @@ stack-data==0.6.2
 terminado==0.17.1
 terminaltables==3.1.10
 tinycss2==1.2.1
-tornado==6.3
+tornado==6.3.2
 tqdm==4.65.0
 traitlets==5.9.0
 uri-template==1.2.0