diff --git a/etc/requirements_dev.txt b/etc/requirements_dev.txt
index c11e42f0..8148c649 100644
--- a/etc/requirements_dev.txt
+++ b/etc/requirements_dev.txt
@@ -8,4 +8,4 @@ requests==0.14.2
 
 # Linting
 
-flake8==1.5
+flake8==1.6