diff --git a/requirements.txt b/requirements.txt
index 744ac11..3c18792 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,7 +75,7 @@ sphinxcontrib-qthelp==2.0.0
 sphinxcontrib-serializinghtml==2.0.0
 stack-data==0.6.2
 tinycss2==1.4.0
-tornado==6.4.2
+tornado==6.5.1
 traitlets==5.14.3
 typing_extensions==4.12.2
 ukkonen==1.0.1