diff --git a/setup.cfg b/setup.cfg
index dd4c72d3..cb21a27d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -24,7 +24,7 @@ classifiers =
 
 [options]
 python_requires = >=3.6
-include_package_data = True
+include_package_data = False
 packages = find:
 install_requires =
     optuna>=2.4