diff --git a/requirements.dev.txt b/requirements.dev.txt
index aea4591ebbdca368db42ca1ecb3c81f10cc720d8..904e70f4a111789e309dae5b332e5b43bb765bb1 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -1,4 +1,4 @@
-flake8==3.7.5
+flake8==3.7.6
 Cython==0.29.5
 nose==1.3.7
 pylint==1.9.4