diff --git a/upper-constraints.txt b/upper-constraints.txt
index ef1bdf4d6b..51ba34dc2e 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -33,7 +33,7 @@ setproctitle===1.1.10
 pytest===3.2.2
 python-etcd===0.4.5
 cursive===0.1.2
-oslo.service===1.25.0
+oslo.service===1.26.0
 django-appconf===1.0.2
 pykerberos===1.1.14
 certifi===2017.7.27.1