diff --git a/requirements.txt b/requirements.txt
index b94c708..b44e845 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -139,7 +139,7 @@ threadpoolctl==3.6.0
 tomli==2.3.0
 tomlkit==0.13.3
 toolz==1.1.0
-tornado==6.5.2
+tornado==6.5.5
 tqdm==4.67.1
 traitlets==5.14.3
 typing-extensions==4.15.0