diff --git a/README.md b/README.md
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@@ -1,3 +1,6 @@
 # EhTagTranslation_Database_JPN
 
 A collection of tags translation from [e-hentaidb](https://e-hentaidb.com/tag/) and [E(x)Hentaiタグ日本語化](https://sleazyfork.org/ja/scripts/391216-e-x-hentaiタグ日本語化/code).
+
+## License
+[Attribution 4.0 International (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/deed.ja)