diff --git a/requirements.txt b/requirements.txt
index 1d27364..f3a9dd6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -78,7 +78,7 @@ sphinxcontrib-qthelp==2.0.0
 sphinxcontrib-serializinghtml==1.1.10
 tinycss2==1.5.1
 tomli==2.4.0
-tornado==6.5.4
+tornado==6.5.5
 traitlets==5.14.3
 typing_extensions==4.15.0
 ukkonen==1.0.1