diff --git a/README.md b/README.md
index 02ae257b..597ea959 100644
--- a/README.md
+++ b/README.md
@@ -90,6 +90,7 @@ The `QuillToolbar` class lets you customise which formatting options are availab
 For web development, use `flutter config --enable-web` for flutter and use [ReactQuill] for React.
 
 It is required to provide `EmbedBuilder`, e.g. [defaultEmbedBuilderWeb](https://github.com/singerdmx/flutter-quill/blob/master/example/lib/universal_ui/universal_ui.dart#L28).
+Also it is required to provide `webImagePickImpl`, e.g. [Sample Page](https://github.com/singerdmx/flutter-quill/blob/master/example/lib/pages/home_page.dart#L204).
 
 ## Desktop