diff --git a/requirements-mkdocs.txt b/requirements-mkdocs.txt
index cb7da7b706..8f63deca3e 100644
--- a/requirements-mkdocs.txt
+++ b/requirements-mkdocs.txt
@@ -27,5 +27,5 @@ regex==2021.8.3
 six==1.15.0
 smmap==3.0.4
 termcolor==1.1.0
-tornado==6.3.3
+tornado==6.4.1
 tqdm==4.56.0
\ No newline at end of file