diff --git a/requirements.txt b/requirements.txt
index 893320612e..12c2faedbb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ oslo.i18n>=1.5.0  # Apache-2.0
 oslo.log>=1.2.0  # Apache-2.0
 oslo.policy>=0.5.0  # 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
 pecan>=0.8.0
 requests>=2.5.2
 six>=1.9.0