diff --git a/intercom_flutter/pubspec.yaml b/intercom_flutter/pubspec.yaml
index 80416c1..eb8d7b1 100644
--- a/intercom_flutter/pubspec.yaml
+++ b/intercom_flutter/pubspec.yaml
@@ -15,7 +15,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  collection: ^1.18.0
+  collection: ^1.17.2
 
 flutter:
   plugin: