diff --git a/README.md b/README.md
index 140d20c0..ffd317f1 100644
--- a/README.md
+++ b/README.md
@@ -138,7 +138,7 @@ For npm:
 
 Install peer dependencies required by ReDoc if you don't have them installed already:
 
-    npm i react react-dom mobx@^4.2.0 styled-components
+    npm i react react-dom mobx@^4.2.0 styled-components core-js
 
 Import `RedocStandalone` component from 'redoc' module: