diff --git a/requirements.dev.txt b/requirements.dev.txt
index 563d677..03b6eb0 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -438,7 +438,7 @@ tomlkit==0.13.2
     # via
     #   pylint
     #   snowflake-connector-python
-tornado==6.4.1
+tornado==6.4.2
     # via
     #   ipykernel
     #   jupyter-client
diff --git a/requirements.ipython.txt b/requirements.ipython.txt
index b4ab469..39ce090 100644
--- a/requirements.ipython.txt
+++ b/requirements.ipython.txt
@@ -328,7 +328,7 @@ tomli==2.0.1
     # via pytest
 tomlkit==0.13.2
     # via snowflake-connector-python
-tornado==6.4.1
+tornado==6.4.2
     # via
     #   ipykernel
     #   jupyter-client