diff --git a/crates/voicevox_core_python_api/pyproject.toml b/crates/voicevox_core_python_api/pyproject.toml
index ab55f5d3e..7d09b8299 100644
--- a/crates/voicevox_core_python_api/pyproject.toml
+++ b/crates/voicevox_core_python_api/pyproject.toml
@@ -4,6 +4,7 @@ version = "0.0.0"
 requires-python = ">=3.10"
 dependencies = ["pydantic>=2.5.2,<3"]
 description = "VOICEVOX CORE の Python バインディングです。"
+license = { file = "../../LICENSE" }
 authors = [{ name = "Hiroshiba", email = "hihokaruta@gmail.com" }]
 classifiers = [
     "Programming Language :: Python",