diff --git a/dev-requirements.txt b/dev-requirements.txt
index 5d9ceb7..a74f18d 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -3,6 +3,6 @@ art==6.5
 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