diff --git a/dev-requirements.txt b/dev-requirements.txt
index 2618b7bab2..8ff5f48647 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1 +1,6 @@
 ansible-lint>=2.0.3
+flake8==2.2.4
+hacking>=0.10.0,<0.11
+pep8==1.5.7
+pyflakes==0.8.1
+mccabe==0.2.1 # capped for flake8