diff --git a/requirements.txt b/requirements.txt
index f23581df9..7d984727f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ keystoneauth1>=2.1.0
 oslo.config>=2.7.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
-oslo.utils>=2.8.0 # Apache-2.0
+oslo.utils!=3.1.0,>=2.8.0 # Apache-2.0
 PrettyTable<0.8,>=0.7
 requests>=2.8.1
 six>=1.9.0