diff --git a/README.md b/README.md
index 32335e5e..2a517bf0 100644
--- a/README.md
+++ b/README.md
@@ -118,7 +118,7 @@ API | Description | Auth | HTTPS | CORS |
 | [LibGen](https://garbage.world/posts/libgen/) | Library Genesis search engine | No | No | Unknown |
 | [New York Times Books](https://developer.nytimes.com/docs/books-product/1/overview) | Book reviews and The New York Times Best Sellers lists | `apiKey` | Yes | Unknown |
 | [Open Library](https://openlibrary.org/developers/api) | Books, book covers and related data | No | Yes | No |
-| [Penguin Publishing](http://www.penguinrandomhouse.biz/webservices/rest/) | Books, book covers and related data | No | Yes | Unknown |
+| [Penguin Publishing](http://www.penguinrandomhouse.biz/webservices/rest/) | Books, book covers and related data | No | Yes | Yes |
 | [Rig Veda](https://aninditabasu.github.io/indica/html/rv.html) | Gods and poets, their categories, and the verse meters, with the mandal and sukta number | No | Yes | Unknown |
 | [Vedic Society](https://aninditabasu.github.io/indica/html/vs.html) | Descriptions of all nouns (names, places, animals, things) from vedic literature | No | Yes | Unknown |