diff --git a/upper-constraints.txt b/upper-constraints.txt
index 62aec7a8c3..382c0c0949 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -413,7 +413,7 @@ django-formtools===2.1
 python-ceilometerclient===2.9.0
 XStatic-Spin===1.2.5.2
 tap-as-a-service===3.0.0
-os-traits===0.16.0
+os-traits===1.0.0
 SecretStorage===2.3.1;python_version=='2.7'
 SecretStorage===3.1.1;python_version=='3.4'
 SecretStorage===3.1.1;python_version=='3.5'