diff --git a/requirements.txt b/requirements.txt
index 0bdda31..73b746f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 GitPython==0.3.5
 coloredlogs==0.8
-tornado==4.1
+tornado==6.3.3
 checkio_docker>=0.0.19
 PyYAML
 future