diff --git a/flutter_maps_firestore/pubspec.yaml b/flutter_maps_firestore/pubspec.yaml
index 794f76844..ed1346ecc 100644
--- a/flutter_maps_firestore/pubspec.yaml
+++ b/flutter_maps_firestore/pubspec.yaml
@@ -8,8 +8,8 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  cloud_firestore: ^3.1.10
-  firebase_core: ^1.2.0
+  cloud_firestore: ">=3.1.10 <5.0.0"
+  firebase_core: ">=1.2.0 <3.0.0"
   google_maps_flutter: ^2.0.0
   google_maps_webservice: ^0.0.20-nullsafety.0
   location: ^4.0.0-nullsafety.0