diff --git a/colorist/step_04/pubspec.yaml b/colorist/step_04/pubspec.yaml
index 5661c92766..5528905af5 100644
--- a/colorist/step_04/pubspec.yaml
+++ b/colorist/step_04/pubspec.yaml
@@ -8,7 +8,7 @@ environment:
 
 dependencies:
   colorist_ui: ^0.5.0
-  firebase_ai: ^3.15.0
+  firebase_ai: ^4.0.0
   firebase_core: ^4.13.0
   flutter:
     sdk: flutter