Updated from global requirements

Change-Id: Ib17c91ef8395b1a4f490765896bffad166aa0ab6

Author: OpenStack Proposal Bot

requirements.txt

@@ -10,7 +10,7 @@ cliff-tablib>=1.0
 os-client-config>=1.2.0
 oslo.config>=1.11.0  # Apache-2.0
 oslo.i18n>=1.5.0  # Apache-2.0
-oslo.utils>=1.4.0                       # Apache-2.0
+oslo.utils>=1.6.0                       # Apache-2.0
 python-glanceclient>=0.18.0
 python-keystoneclient>=1.6.0
 python-novaclient>=2.22.0