diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0ed26cd1b..f02503872 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 coverage==4.4.2
 ddt==1.2.0
-flake8==3.5.0
+flake8==3.7.9
 mock==3.0.5
 pytest==3.6.3
 pytest-cov==2.8.1