diff --git a/develop.txt b/develop.txt
index 8beef0ff..7397e15c 100644
--- a/develop.txt
+++ b/develop.txt
@@ -7,3 +7,4 @@ pytest-pep8>=1.0.6
 pytest-emoji>=0.2.0
 pytest-flake8>=1.0.7
 wemake-python-styleguide>=0.15.2
+pytest-pydocstyle>=2.2.0
diff --git a/setup.cfg b/setup.cfg
index 06a7a372..95491d30 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -89,6 +89,7 @@ addopts =
   --cov-report=term
   --cov-report=xml
   --junitxml=pytest.xml
+  --pydocstyle
 
 [pydocstyle]
 convention=numpy