diff --git a/DAT/r.txt b/DAT/r.txt
index e94d6f7..cf069c7 100644
--- a/DAT/r.txt
+++ b/DAT/r.txt
@@ -70,7 +70,7 @@ Send2Trash==1.5.0
 six==1.12.0
 terminado==0.8.2
 testpath==0.4.2
-tornado==6.0.2
+tornado==6.3.3
 tqdm==4.31.1
 traitlets==4.3.2
 typed-ast==1.3.2
diff --git a/requirements.txt b/requirements.txt
index 9ecb5b9..ddb6026 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -81,7 +81,7 @@ Send2Trash==1.5.0
 six==1.12.0
 terminado==0.8.2
 testpath==0.4.2
-tornado==6.0.2
+tornado==6.3.3
 tqdm==4.31.1
 traitlets==4.3.2
 typed-ast==1.3.2