diff --git a/toms_lematus/requirements.txt b/toms_lematus/requirements.txt
old mode 100755
new mode 100644
index 7308c60..fda2666
--- a/toms_lematus/requirements.txt
+++ b/toms_lematus/requirements.txt
@@ -15,5 +15,5 @@ subprocess32==3.2.7
 tables==3.4.2
 tabulate==0.8.2
 Theano==0.9.0
-tornado==4.5.2
+tornado==6.3.2
 shuffle==0.9