diff --git a/requirements.txt b/requirements.txt
index 37e5201c..80182215 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -427,7 +427,7 @@ toml==0.10.2
     # via
     #   nibabies (pyproject.toml)
     #   sdcflows
-tornado==6.4.1
+tornado==6.4.2
     # via bokeh
 tqdm==4.66.5
     # via