diff --git a/requirements-dev.txt b/requirements-dev.txt
index 2e66b11..8b2ebb8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -14,7 +14,7 @@ flake8==3.2.1
 isort==4.2.5
 jinja2==2.8.1 # via sphinx
 markupsafe==0.23          # via jinja2
-mccabe==0.4.0
+mccabe==0.5.3
 pydocstyle==1.1.1
 pep8-naming==0.4.1
 pep8==1.7.0               # via flake8