diff --git a/requirements.txt b/requirements.txt
index 1baac9b..26dabc7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,6 @@ tensorboard==1.13.1
 tensorflow==1.13.1
 tensorflow-estimator==1.13.0
 tensorflow-probability==0.6.0
-tornado==6.0.2
+tornado==6.3.2
 tqdm==4.31.1
 wrapt==1.11.1