Updated from global requirements

Change-Id: Icf2e8d6cca0194de127ef0dfaee5db04381b5cd1

Author: OpenStack Proposal Bot

requirements.txt

@@ -10,7 +10,7 @@ keystoneauth1>=3.2.0 # Apache-2.0
 openstacksdk>=0.9.19 # Apache-2.0
 osc-lib>=1.7.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
-oslo.utils>=3.28.0 # Apache-2.0
+oslo.utils>=3.31.0 # Apache-2.0
 python-glanceclient>=2.8.0 # Apache-2.0
 python-keystoneclient>=3.8.0 # Apache-2.0
 python-novaclient>=9.1.0 # Apache-2.0