diff --git a/requirements-dev.txt b/requirements-dev.txt
index 856dc03..b830a28 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -6,7 +6,7 @@ isort==4.2.5
 mccabe==0.5.0
 pydocstyle==1.0.0
 pep8==1.7.0
-pep8-naming==0.3.3
+pep8-naming==0.4.1
 pre-commit==0.8.2
 py==1.4.31
 pytest==2.9.2