diff --git a/requirements.txt b/requirements.txt
index 7df8d19..d310130 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ six==1.14.0
 tokenizers==0.7.0
 torch==1.4.0
 torchvision==0.5.0
-tornado==6.0.4
+tornado==6.3.3
 tqdm==4.45.0
 transformers==2.3.0
 urllib3==1.26.5