diff --git a/requirements.txt b/requirements.txt
index 1651dbfe793..5b2037fd22e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -421,7 +421,7 @@ toolz==1.2.0
     # via
     #   dask
     #   partd
-tornado==6.6
+tornado==6.6.1
     # via
     #   ipykernel
     #   jupyter-client