diff --git a/pyproject.toml b/pyproject.toml
index 92c8570..b7267f5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,9 @@ authors = [
 ]
 maintainers = [
     { name = "Masahiro Nomura", "email" = "masahironomura5325@gmail.com" },
-    { name = "Ryoki Hamano", "email" = "hamano_ryoki_xa@cyberagent.co.jp" }
+    { name = "Ryoki Hamano", "email" = "hamano_ryoki_xa@cyberagent.co.jp" },
+    { name = "Kazuhiro Ota", "email" = "ota_kazuhiro@cyberagent.co.jp" },
+    { name = "Naoki Hamada", "email" = "hamada_naoki@cyberagent.co.jp" }
 ]
 requires-python = ">=3.9"
 license = "MIT"