diff --git a/lower-constraints.txt b/lower-constraints.txt
index 6c920e5f..eaa72be9 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -15,8 +15,6 @@ dogpile.cache==0.6.2
 dulwich==0.15.0
 extras==1.0.0
 fixtures==3.0.0
-flake8==2.5.5
-hacking==0.12.0
 httplib2==0.9.1
 idna==2.6
 imagesize==0.7.1
@@ -48,11 +46,9 @@ oslo.serialization==2.18.0
 oslo.utils==3.33.0
 oslotest==3.2.0
 pbr==2.0.0
-pep8==1.5.7
 positional==1.2.1
 prettytable==0.7.2
 pycparser==2.18
-pyflakes==0.8.1
 Pygments==2.2.0
 pyOpenSSL==17.1.0
 pyparsing==2.1.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 689537cf..f3170af7 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-hacking>=3.0,<3.1.0 # Apache-2.0
+hacking>=3.0.1,<3.1.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 oslotest>=3.2.0 # Apache-2.0