diff --git a/requirements.txt b/requirements.txt
index 39857a2..ea559cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ sniffio==1.2.0
 terminado==0.9.2
 testpath==0.4.4
 threadpoolctl==2.1.0
-tornado==6.1
+tornado==6.3.2
 traitlets==5.0.5
 urllib3==1.26.5
 visitor==0.1.3