diff --git a/src/Intervention/Image/Commands/StreamCommand.php b/src/Intervention/Image/Commands/StreamCommand.php
index 111c4756..6d659147 100644
--- a/src/Intervention/Image/Commands/StreamCommand.php
+++ b/src/Intervention/Image/Commands/StreamCommand.php
@@ -16,10 +16,10 @@ class StreamCommand extends AbstractCommand
         $format = $this->argument(0)->value();
         $quality = $this->argument(1)->between(0, 100)->value();
 
-        $this->setOutput(\GuzzleHttp\Psr7\stream_for(
+        $this->setOutput(\GuzzleHttp\Psr7\Utils::streamFor(
             $image->encode($format, $quality)->getEncoded()
         ));
 
         return true;
     }
-}
\ No newline at end of file
+}