diff --git a/setup.py b/setup.py
index 57adfeb..7b8d43b 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
     long_description_content_type="text/markdown",
     url="https://github.com/rokam/sunweg",
     install_requires=requires,
-    packages=setuptools.find_packages(),
+    packages=setuptools.find_packages(exclude=['tests','tests.*']),
     python_requires=">=3.10",
     classifiers=[
         "Programming Language :: Python :: 3",