diff --git a/requirements-dev.txt b/requirements-dev.txt
index 9e3f25e..2fa33b3 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -15,7 +15,7 @@ isort==4.2.15
 jinja2==2.9.6 # via sphinx
 markupsafe==1.0          # via jinja2
 mccabe==0.6.1
-pydocstyle==2.0.0
+pydocstyle==2.1.0
 pep8-naming==0.4.1
 pep8==1.7.0               # via flake8
 py==1.4.34 # via pytest