diff --git a/requirements.txt b/requirements.txt
index f98033120..009e59256 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ argparse
 iso8601>=0.1.9
 oslo.i18n>=1.5.0  # Apache-2.0
 oslo.serialization>=1.4.0               # Apache-2.0
-oslo.utils>=1.4.0                       # Apache-2.0
+oslo.utils>=1.6.0                       # Apache-2.0
 PrettyTable>=0.7,<0.8
 requests>=2.5.2
 simplejson>=2.2.0