diff --git a/setup.py b/setup.py
index d89c9dd..94af35e 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@ def snake_test_suite():
         'python-magic==0.4.15',
         'pyyaml==5.1',
         'requests==2.18.4',
-        'tornado==5.0.1',
+        'tornado==6.3.2',
         'vine==1.3.0',
         'webargs==2.0.0'
     ],