diff --git a/requirements-dev.txt b/requirements-dev.txt
index a00bb51..2d97d4f 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 -e .
-flake8==3.2.1
+flake8==3.3.0
 pytest==3.0.6
 pytest-cov==2.4.0
 coverage==4.3.4