diff --git a/Classes/S3Target.php b/Classes/S3Target.php
index 55546c1..cfed80b 100644
--- a/Classes/S3Target.php
+++ b/Classes/S3Target.php
@@ -9,7 +9,6 @@
 use Aws\S3\Exception\S3Exception;
 use Aws\S3\S3Client;
 use TYPO3\Flow\Annotations as Flow;
-use TYPO3\Flow\Resource\Collection;
 use TYPO3\Flow\Resource\CollectionInterface;
 use TYPO3\Flow\Resource\Exception;
 use TYPO3\Flow\Resource\Resource;
@@ -158,11 +157,11 @@ public function getKeyPrefix()
     /**
      * Publishes the whole collection to this target
      *
-     * @param \TYPO3\Flow\Resource\Collection $collection The collection to publish
+     * @param \TYPO3\Flow\Resource\CollectionInterface $collection The collection to publish
      * @return void
      * @throws Exception
      */
-    public function publishCollection(Collection $collection)
+    public function publishCollection(CollectionInterface $collection)
     {
         if (!isset($this->existingObjectsInfo)) {
             $this->existingObjectsInfo = array();
diff --git a/composer.json b/composer.json
index 9484c0c..7038338 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     "MIT"
   ],
   "require": {
-    "typo3/flow": ">=3.0 <3.1",
+    "typo3/flow": ">=3.1",
     "aws/aws-sdk-php": "2.8.*"
   },
   "autoload": {
@@ -22,4 +22,4 @@
       "Flownative\\Aws\\S3\\": "Classes"
     }
   }
-}
\ No newline at end of file
+}