diff --git a/devops/helpers/scancodes.py b/devops/helpers/scancodes.py
index c987d775..1830b6bd 100644
--- a/devops/helpers/scancodes.py
+++ b/devops/helpers/scancodes.py
@@ -180,4 +180,4 @@ def from_string(s):
         if len(codes) > 0:
             scancodes.append(codes)
 
-    return scancodes
\ No newline at end of file
+    return scancodes
diff --git a/run_tests.sh b/run_tests.sh
index d781f22e..04607723 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -3,5 +3,4 @@
 set -e
 set -x
 
-flake8 --ignore=H302,H802 --show-source ./
-
+tox -v
diff --git a/tox.ini b/tox.ini
index d0b3bbdf..07809ec9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,16 +5,20 @@
 
 [tox]
 minversion = 1.6
-envlist = flake8
+envlist = pep8
 skipsdist = True
 
+[testenv:pep8]
+deps = hacking==0.10.1
+usedevelop = False
+commands =
+    flake8
+
 [flake8]
-ignore = H234,H302,H802
+# H238  old style class declaration, use new style (inherit from `object`)
+# H234  assertEquals is deprecated, use assertEqual
+ignore = H234,H238
 exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,tools,__init__.py,docs
 show-pep8 = True
 show-source = True
 count = True
-
-[testenv:flake8]
-deps = hacking==0.9
-commands = flake8