diff --git a/oslo_policy/opts.py b/oslo_policy/opts.py
index 8191449e..0880fdfb 100644
--- a/oslo_policy/opts.py
+++ b/oslo_policy/opts.py
@@ -21,6 +21,7 @@ from oslo_policy import policy
 
 def list_opts():
     """Return a list of oslo.config options available in the library.
+
     The returned list includes all oslo.config options which may be registered
     at runtime by the library.
     Each element of the list is a tuple. The first element is the name of the
@@ -31,6 +32,8 @@ def list_opts():
     under the 'oslo.config.opts' namespace.
     The purpose of this is to allow tools like the Oslo sample config file
     generator to discover the options exposed to users by this library.
+
     :returns: a list of (group_name, opts) tuples
     """
+
     return [('oslo_policy', copy.deepcopy(policy._opts))]
diff --git a/test-requirements.txt b/test-requirements.txt
index 374d32a1..82b515d6 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-hacking>=0.5.6,<0.8
+hacking>=0.10.0,<0.11
 oslotest
 
 # These are needed for docs generation
diff --git a/tox.ini b/tox.ini
index c46cd3bc..fc821152 100644
--- a/tox.ini
+++ b/tox.ini
@@ -30,10 +30,9 @@ commands = python setup.py testr --coverage
 
 [flake8]
 # H803 skipped on purpose per list discussion.
-# E123, E125 skipped as they are invalid PEP-8.
 
 show-source = True
-ignore = E123,E125,H803
+ignore = H803
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build