From theme root using the terminal, install `zoom-vanilla`

```
npm install --save zoom-vanilla.js
```

In `assets/sass/vendor_all.scss` file, replace

```
@import '../../bower_components/zoom.js/css/zoom';
```

with

```
@import '../../node_modules/zoom-vanilla.js/dist/zoom';
```

In `gulpfile.js` replace

```
'./bower_components/zoom.js/dist/zoom.js',
```

with

```
'./node_modules/zoom-vanilla.js/dist/zoom-vanilla.min.js',
```

Run `gulp` command to compile the assests