diff --git a/requirements/local.txt b/requirements/local.txt
index 84e76bf3..982d9f33 100644
--- a/requirements/local.txt
+++ b/requirements/local.txt
@@ -36,6 +36,6 @@ django-debug-toolbar  # https://github.com/jazzband/django-debug-toolbar
 django-extensions==3.2.3  # https://github.com/django-extensions/django-extensions
 django-coverage-plugin==3.1.0  # https://github.com/nedbat/django_coverage_plugin
 pytest-django==4.8.0  # https://github.com/pytest-dev/pytest-django
-tornado>=6.3.3 # not directly required, pinned by Snyk to avoid a vulnerability
+tornado>=6.4.2 # not directly required, pinned by Snyk to avoid a vulnerability
 
 django-test-migrations==1.3.0
\ No newline at end of file