diff --git a/docs/requirements.txt b/docs/requirements.txt
index 272814d..f472ae1 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -13,5 +13,5 @@ mkdocs==1.0.4
 pylint==2.1.1
 PyYAML==5.1
 six==1.11.0
-tornado==5.1.1
+tornado==6.3.2
 wrapt==1.10.11
\ No newline at end of file