diff --git a/requirements_dev.txt b/requirements_dev.txt
index 638fb1c..1f661e5 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -2,7 +2,7 @@ pip==9.0.1
 bumpversion==0.5.3
 wheel==0.29.0
 watchdog==0.8.3
-flake8==3.4.1
+flake8==3.7.6
 tox==2.7.0
 coverage==4.4.1
 Sphinx==1.6.3