diff --git a/setup.py b/setup.py
index 9705a9e6..b4fd371d 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
     'pandas==1.5.3',
     'portpicker==1.5.2',
     'requests==2.31.0',
-    'tornado==6.3.2',
+    'tornado==6.3.3',
 )
 
 setup(