diff --git a/requirements.txt b/requirements.txt
index 11b32d2..09b0519 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,4 +15,4 @@ Pygments==2.5.2
 pymdown-extensions==6.3
 PyYAML==5.3
 six==1.14.0
-tornado==6.0.4
+tornado==6.3.2