diff --git a/composer.json b/composer.json
index 8981647..4d98344 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "aws/aws-sdk-php": "^3.80",
         "bref/bref": "^1.1",
         "guzzlehttp/guzzle": "^6.3|^7.0",
-        "laravel/framework": "^6.0|^7.0|^8.0"
+        "laravel/framework": "^6.0|^7.0|^8.0|^9.0"
     },
     "require-dev": {
         "mockery/mockery": "^1.2",
@@ -61,4 +61,4 @@
     },
     "minimum-stability": "dev",
     "prefer-stable": true
-}
+}
\ No newline at end of file
diff --git a/src/SubscriptionRepository.php b/src/SubscriptionRepository.php
index f80481f..df2e1e0 100644
--- a/src/SubscriptionRepository.php
+++ b/src/SubscriptionRepository.php
@@ -36,7 +36,7 @@ public function getConnectionIdsForChannel(string ...$channels): Collection
         $responses = Utils::all($promises)->wait();
 
         return collect($responses)
-            ->flatmap(fn (array $result): array => $result['Items'])
+             ->flatmap(fn (\Aws\Result $result): array => $result['Items'])
             ->map(fn (array $item): string => $item['connectionId']['S'])
             ->unique();
     }