diff --git a/docs/ja/docs/index.md b/docs/ja/docs/index.md
index 269f306eff..67e01ed535 100644
--- a/docs/ja/docs/index.md
+++ b/docs/ja/docs/index.md
@@ -27,7 +27,7 @@
---
-**ドキュメント**: https://fastapi.tiangolo.com
+**ドキュメント**: https://fastapi.tiangolo.com
**ソースコード**: https://github.com/fastapi/fastapi