diff --git a/tox.ini b/tox.ini
index ffbc55ed4..5a65c29ba 100644
--- a/tox.ini
+++ b/tox.ini
@@ -65,7 +65,7 @@ skip_install = true
 deps =
     -rrequirements.txt
     pyflakes==0.8.1
-    pep8==1.5.7  # rq.filter: <=1.5.7
+    pep8==1.5.7  # rq.filter: <=1.6.0
     flake8==2.4.0
 commands =
     {[testenv:mkvenv]commands}