diff --git a/tools/test-requires b/tools/test-requires
index 346bbd76b..89a328f16 100644
--- a/tools/test-requires
+++ b/tools/test-requires
@@ -1,9 +1,3 @@
-# Install bounded pep8/pyflakes first, then let flake8 install
-pep8==1.4.5
-pyflakes==0.7.2
-flake8==2.0
-hacking>=0.5.3,<0.6
-
 nose
 unittest2
 coverage
diff --git a/tox.ini b/tox.ini
index fcd89f1cc..d9556a703 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,6 +19,11 @@ sitepackages = False
 commands = nosetests --no-path-adjustment --with-coverage --cover-erase --cover-package=ceilometer --cover-inclusive []
 
 [testenv:pep8]
+# Install bounded pep8/pyflakes first, then let flake8 install
+deps = pep8==1.4.5
+       pyflakes==0.7.2
+       flake8==2.0
+       hacking>=0.5.3,<0.6
 commands =
     flake8 ceilometer setup.py bin/ceilometer-agent-central bin/ceilometer-agent-compute bin/ceilometer-collector bin/ceilometer-api tests