diff --git a/dev-requirements.txt b/dev-requirements.txt
index a3e63a7..c65706c 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -4,4 +4,4 @@ pytest-cov>=2.6.1
 setuptools>=40.8.0
 vulture>=1.0
 bandit>=1.5.1
-pydocstyle>=3.0.0
+pydocstyle>=6.3.0