diff --git a/requirements.txt b/requirements.txt
index 3522d3feac..cf17b5939f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ requests==2.6.0
 # note: simplejson is used in many checks to inteface APIs
 simplejson==3.6.5
 supervisor==3.1.3
-tornado==3.2.2
+tornado==6.3.2
 uptime==3.0.1
 
 ###########################################################