diff --git a/requirements-dev.txt b/requirements-dev.txt
index d00c58f7..2b71e644 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -4,3 +4,6 @@ sphinx
 sphinx_rtd_theme
 sphinx_autobuild
 autodoc
+coverage
+flake8
+pydocstyle