diff --git a/upper-constraints.txt b/upper-constraints.txt
index ff0b023eb8..5c904ddd4a 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -14,7 +14,7 @@ Routes===2.4.1
 rtslib-fb===2.1.64
 smmap===0.9.0
 XStatic-Angular-Bootstrap===2.2.0.0
-paunch===1.5.0
+paunch===2.0.0
 WebOb===1.7.3
 sphinxcontrib-actdiag===0.8.5
 pecan===1.2.1