diff --git a/pyproject.toml b/pyproject.toml
index 369a34e4..9db14241 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -68,7 +68,7 @@ changelog = "https://github.com/jazzband/django-pipeline/blob/master/HISTORY.rst
 include-package-data = true
 
 [tool.setuptools.packages.find]
-exclude = ["tests", "tests.tests"]
+exclude = ["tests", "tests.*"]
 
 [tool.setuptools_scm]
 local_scheme = "dirty-tag"