diff --git a/pyproject.toml b/pyproject.toml
index 19ac04e..67ddd5a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,6 @@ Tracker = "https://github.com/scrapy/protego/issues"
 [tool.hatch.build.targets.sdist]
 include = [
     "/src",
-    "/tests",
     "/CHANGELOG.rst",
     "/tox.ini",
 ]