diff --git a/lower-constraints.txt b/lower-constraints.txt
index 00c38498f..be69e9429 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -44,7 +44,7 @@ jsonschema==2.6.0
 kazoo==2.2
 keystoneauth1==3.4.0
 keystonemiddleware==4.18.0
-kombu==4.0.0
+kombu==4.6.1
 linecache2==1.0.0
 logutils==0.3.5
 Mako==0.4.0
diff --git a/requirements.txt b/requirements.txt
index 167cc70fe..22ff08163 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,6 +13,7 @@ gnocchiclient>=3.3.1 # Apache-2.0
 Jinja2>=2.10 # BSD License (3 clause)
 #jsonschema>=2.6.0 # MIT
 keystonemiddleware>=4.18.0 # Apache-2.0
+kombu!=4.0.2,>=4.6.1 # BSD
 mistral-lib>=1.2.0 # Apache-2.0
 networkx<2.3,>=1.10;python_version<'3.0'  # BSD
 networkx>=2.3;python_version>='3.4'  # BSD