diff --git a/lower-constraints.txt b/lower-constraints.txt
index f69b80c1..de6be7b9 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -11,17 +11,14 @@ dogpile.cache==0.6.2
 etcd3gw==0.2.0
 extras==1.0.0
 fixtures==3.0.0
-flake8==2.5.5
 gitdb2==2.0.3
 GitPython==2.1.8
-hacking==0.12.0
 idna==2.6
 iso8601==0.1.12
 Jinja2==2.10
 keystoneauth1==3.4.0
 linecache2==1.0.0
 MarkupSafe==1.0
-mccabe==0.2.1
 monotonic==1.4
 mox3==0.25.0
 msgpack==0.5.6
@@ -39,11 +36,9 @@ oslotest==3.2.0
 packaging==17.1
 Parsley==1.3
 pbr==3.1.1
-pep8==1.5.7
 pifpaf==0.10.0
 psutil==5.4.3
 pycparser==2.18
-pyflakes==0.8.1
 pyinotify==0.9.6
 pymongo==3.0.2
 pyparsing==2.2.0