diff --git a/test-requirements.txt b/test-requirements.txt
index 236a473..6c313ca 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,8 +1,4 @@
-# Install bounded pep8/pyflakes first, then let flake8 install
-pep8==1.4.5
-pyflakes==0.7.2
-flake8==2.0
-hacking>=0.5.6,<0.7
+hacking>=0.5.6,<0.8
 # needed for doc build
 docutils==0.9.1
 sphinx>=1.1.2