diff --git a/firebase-get-to-know-flutter/step_04/pubspec.yaml b/firebase-get-to-know-flutter/step_04/pubspec.yaml
index 641d8e3318..87d36807e5 100644
--- a/firebase-get-to-know-flutter/step_04/pubspec.yaml
+++ b/firebase-get-to-know-flutter/step_04/pubspec.yaml
@@ -37,11 +37,11 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
   google_fonts: ^3.0.1
-  cloud_firestore: ^3.5.0
-  firebase_auth: ^3.11.1
-  firebase_core: ^1.24.0
+  cloud_firestore: ^4.0.2
+  firebase_auth: ^4.0.2
+  firebase_core: ^2.1.0
   provider: ^6.0.3
-  firebase_ui_auth: ^1.0.0-dev.0
+  firebase_ui_auth: ^1.0.2
 
 dev_dependencies:
   flutter_test: