diff --git a/source/image-handler/setup.py b/source/image-handler/setup.py
index 21394dc6a..4953d777f 100644
--- a/source/image-handler/setup.py
+++ b/source/image-handler/setup.py
@@ -31,7 +31,7 @@
         'botocore==1.8.0',
         # SO-SIH-159 - 07/18/2018 - Version and dependencies fix
         # Locking botocore, pycurl version and moving dependencies from requirements
-        'tornado==5.0.1',
+        'tornado==6.4.1',
         'pycurl==7.43.0.1',
         'requests_unixsocket==0.1.5',
         'thumbor==6.5.1',