diff --git a/upper-constraints.txt b/upper-constraints.txt
index a1ba6860c3..31b33a0edd 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -361,7 +361,7 @@ seqdiag===0.9.5
 numpy===1.13.3
 repoze.who===2.3
 Sphinx===1.6.5
-oslo.config===5.0.0
+oslo.config===5.1.0
 tempest===17.1.0
 django-floppyforms===1.7.0
 openstackdocstheme===1.17.0