diff --git a/lower-constraints.txt b/lower-constraints.txt
index 8cbcde88..776b3ceb 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -10,15 +10,12 @@ deprecation==1.0
 dogpile.cache==0.6.2
 extras==1.0.0
 fixtures==3.0.0
-flake8==2.5.5
-hacking==0.12.0
 iso8601==0.1.11
 jmespath==0.9.0
 jsonpatch==1.16
 jsonpointer==1.13
 keystoneauth1==3.4.0
 linecache2==1.0.0
-mccabe==0.2.1
 monotonic==0.6
 msgpack-python==0.4.0
 munch==2.1.0
@@ -35,10 +32,8 @@ oslo.log==3.36.0
 oslo.serialization==2.18.0
 oslo.utils==3.40.0
 pbr==2.0.0
-pep8==1.5.7
 positional==1.2.1
 prettytable==0.7.2
-pyflakes==0.8.1
 pyinotify==0.9.6
 pyparsing==2.1.0
 pyperclip==1.5.27