--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ with open("README.md") as fh:
 setup(
     name="jsonfeed-util",
     version=version,
-    packages=find_packages(),
+    packages=find_packages(exclude=["tests", "tests.*"]),
     # metadata for upload to PyPI
     author="Lukas Schwab",
     author_email="lukas.schwab@gmail.com",