diff --git a/requirements.txt b/requirements.txt
index 9f2805a..8980295 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -45,7 +45,7 @@ tblib==1.7.0
 threadpoolctl==3.1.0
 tomli==2.0.1
 toolz==0.12.0
-tornado==6.2
+tornado==6.3.3
 tqdm==4.65.0
 typing_extensions==4.5.0
 zict==2.2.0