1 files changed, 1 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index fdc70a7..18f789f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,7 +8,7 @@ commands =
     /bin/bash -c 'py.test _test/test_*.py'
 deps =
     pytest
-    flake8
+    flake8==2.5.5
 
 [pytest]
 norecursedirs = test/lib .tox