diff --git a/lower-constraints.txt b/lower-constraints.txt
index e278eab4..70039eed 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -19,11 +19,9 @@ eventlet==0.18.2
 extras==1.0.0
 fasteners==0.7.0
 fixtures==3.0.0
-flake8==2.5.5
 future==0.16.0
 futurist==1.2.0
 greenlet==0.4.10
-hacking==0.12.0
 imagesize==0.7.1
 iso8601==0.1.11
 ipaddress==1.0.16
@@ -36,7 +34,6 @@ kombu==4.0.0
 linecache2==1.0.0
 Mako==0.4.0
 MarkupSafe==1.0
-mccabe==0.2.1
 mock==2.0.0
 monotonic==0.6
 mox3==0.20.0
@@ -68,12 +65,10 @@ oslotest==3.2.0
 Paste==2.0.2
 PasteDeploy==1.5.0
 pbr==2.0.0
-pep8==1.5.7
 pika==0.10.0
 pika-pool==0.1.3
 positional==1.2.1
 prettytable==0.7.2
-pyflakes==0.8.1
 Pygments==2.2.0
 pyinotify==0.9.6
 pyparsing==2.1.0