diff --git a/requirements.txt b/requirements.txt
index 2f0e67524..ce637b526 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 cookiecutter==1.5.1
-flake8==3.3.0 # pyup: != 2.6.0
+flake8==3.4.0 # pyup: != 2.6.0
 sh==1.12.14
 binaryornot==0.4.3