diff --git a/lower-constraints.txt b/lower-constraints.txt
index a961a6ce0a8..d729183b236 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -89,7 +89,7 @@ ovsdbapp==0.9.1
 Paste==2.0.2
 PasteDeploy==1.5.0
 pbr==2.0.0
-pecan==1.0.0
+pecan==1.1.1
 pep8==1.5.7
 pika-pool==0.1.3
 pika==0.10.0
diff --git a/requirements.txt b/requirements.txt
index a75eac216bf..0d75e46e367 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ PasteDeploy>=1.5.0 # MIT
 Routes>=2.3.1 # MIT
 debtcollector>=1.2.0 # Apache-2.0
 eventlet!=0.18.3,!=0.20.1,>=0.18.2 # MIT
-pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2,>=1.0.0 # BSD
+pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2,>=1.1.1 # BSD
 httplib2>=0.9.1 # MIT
 Jinja2>=2.10 # BSD License (3 clause)
 keystonemiddleware>=4.17.0 # Apache-2.0