diff --git a/dev-requirements.txt b/dev-requirements.txt
index 484a325..6d32bbe 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -5,6 +5,6 @@ lxml==6.1.0
 setuptools>=40.8.0
 vulture>=1.0
 bandit>=1.5.1
-pydocstyle>=3.0.0
+pydocstyle>=6.3.0
 pytest>=4.3.1
 pytest-cov>=2.6.1