diff --git a/packages/flutter/lib/src/widgets/editable_text.dart b/packages/flutter/lib/src/widgets/editable_text.dart
index 9427b73afe816..7d2108c091980 100644
--- a/packages/flutter/lib/src/widgets/editable_text.dart
+++ b/packages/flutter/lib/src/widgets/editable_text.dart
@@ -2978,7 +2978,7 @@ class CommittedContent {
     return CommittedContent(
         mimeType: data['mimeType'] as String?,
         uri: data['uri'] as String?,
-        data: Uint8List.fromList(List<int>.from(data['data']))
+        data: Uint8List.fromList(List<int>.from(data['data'] as Iterable<dynamic>))
     );
   }