diff --git a/pyproject.toml b/pyproject.toml
index 73d55c7b..3c5f05c2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -149,6 +149,8 @@ select = [
     "T10",
     # flake8-logging-format
     "G",
+    # flake8-no-pep420
+    "INP",
     # flake8-print
     "T20",
     # flake8-pytest-style
diff --git a/python/deptry/deprecate/__init__.py b/python/deptry/deprecate/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/unit/deprecate/__init__.py b/tests/unit/deprecate/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/unit/violations/__init__.py b/tests/unit/violations/__init__.py
new file mode 100644
index 00000000..e69de29b