diff --git a/requirements.txt b/requirements.txt
index cd520bc628..528bd2b41d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,6 @@ oslo.i18n>=1.5.0 # Apache-2.0
 oslo.log>=1.8.0 # Apache-2.0
 oslo.serialization>=1.4.0 # Apache-2.0
 oslo.service>=0.7.0 # Apache-2.0
-oslo.utils>=2.0.0 # Apache-2.0
+oslo.utils!=2.6.0,>=2.0.0 # Apache-2.0
 oslo.vmware>=1.16.0 # Apache-2.0
 tooz>=1.19.0 # Apache-2.0