diff --git a/README.md b/README.md
index 660909e9a5..a47e66bf9f 100644
--- a/README.md
+++ b/README.md
@@ -1468,6 +1468,27 @@ Other Style Guides
import foo from './foo';
import bar from './bar';
import baz from './baz';
+
+ ```
+
+
+
+ - [10.11](#modules--import/no-extraneous-dependencies) Forbid the use of extraneous packages.
+ eslint: [`import/no-extraneous-dependencies`](https://github.com/benmosher/eslint-plugin-import/blob/master/docs/rules/no-extraneous-dependencies.md)
+
+ > Why? You should only allow modules that are declared in the package.json's dependencies, devDependencies, optionalDependencies, peerDependencies, or bundledDependencies to be imported and used within the project.
+
+ ```javascript
+ // bad
+ // Not declared in package.json - es6.js
+ import es6 from 'es6';
+ const es6 = require('es6');
+
+ // good
+ // Declared in package.json es6.js
+ import es6 from 'es6';
+ const es6 = require('es6');
+
```
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