diff --git a/README.md b/README.md
index 4b9f4f70..2c6c5c6c 100644
--- a/README.md
+++ b/README.md
@@ -3401,7 +3401,7 @@ Other Style Guides
     - Whichever testing framework you use, you should be writing tests!
     - Strive to write many small pure functions, and minimize where mutations occur.
     - Be cautious about stubs and mocks - they can make your tests more brittle.
-    - We primarily use [`mocha`](https://www.npmjs.com/package/mocha) at Airbnb. [`tape`](https://www.npmjs.com/package/tape) is also used occasionally for small, separate modules.
+    - We primarily use [`mocha`](https://www.npmjs.com/package/mocha) and [`jest`](https://www.npmjs.com/package/jest) at Airbnb. [`tape`](https://www.npmjs.com/package/tape) is also used occasionally for small, separate modules.
     - 100% test coverage is a good goal to strive for, even if it’s not always practical to reach it.
     - Whenever you fix a bug, _write a regression test_. A bug fixed without a regression test is almost certainly going to break again in the future.