diff --git a/pyproject.toml b/pyproject.toml
index 01e0da1d..2d74104b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,11 +39,8 @@ optuna-dashboard = "optuna_dashboard._cli:main"
 [tool.setuptools.dynamic]
 version = {attr = "optuna_dashboard.__version__"}
 
-[tool.setuptools.packages.find]
-where = ["."]
-exclude = ["python_tests*"]
-
 [tool.setuptools]
+packages = ["optuna_dashboard"]
 include-package-data = false
 package-data = { "optuna_dashboard" = ["public/*", "img/*", "index.html"] }