diff --git a/requirements.txt b/requirements.txt
index 7006d9c..a7cf4cb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ pip==8.1.2
 bumpversion==0.5.3
 wheel==0.29.0
 watchdog==0.8.3
-flake8==2.6.0
+flake8==3.7.9
 tox==2.3.1
 coverage==4.1
 Sphinx==1.4.8