fix: update gradient utils NB-136 (#376)

* fix: update gradient utils

* version

Author: reynld

Pipfile

@@ -21,7 +21,7 @@ halo = "*"
 pyyaml = "*"
 python-dateutil = ">=2.0,<3.0"
 websocket-client = "*"
-gradient-utils = ">=0.1.1"
+gradient-utils = ">=0.5.0"
 sphinx = "*"
 recommonmark = "*"
 sphinx-click = "*"