diff --git a/tox.ini b/tox.ini
index 9a63dfc45..b264b3f2c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -163,7 +163,7 @@ basepython = python3
 passenv =
 deps =
     -r{toxinidir}/requirements.txt
-    flake8==2.5.2
+    flake8==2.5.4
     flake8-debugger==1.4.0
     pep8-naming==0.3.3
     flake8-putty==0.2.0