diff --git a/pyproject.toml b/pyproject.toml
index 84e5b67..ede5133 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,6 +47,10 @@ build-backend = "hatchling.build"
 [tool.hatch.version]
 source = "vcs"
 
+[tool.hatch.build.targets.wheel]
+only-include = ["src"]
+sources = ["src"]
+
 [tool.hatch.version.raw-options]
 local_scheme = "no-local-version"