1 files changed, 1 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index 44d06a9..55d4226 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,6 +13,7 @@ commands =
   python setup.py testr --slowest --testr-args='{posargs}'
 
 [testenv:pep8]
+deps = hacking<0.11,>=0.10.0
 commands = flake8
 
 [testenv:cover]