diff --git a/tests/Feature/BroadcasterTest.php b/tests/Feature/BroadcasterTest.php
index 09c7290..e284b28 100644
--- a/tests/Feature/BroadcasterTest.php
+++ b/tests/Feature/BroadcasterTest.php
@@ -43,7 +43,7 @@ private function assertMercureDockerLog(callable $matcher)
     /** @before */
     public function startMercureServer()
     {
-        $command = "docker run -d -e JWT_KEY='aVerySecretKey' -e DEMO=1 -e ALLOW_ANONYMOUS=1 -e PUBLISH_ALLOWED_ORIGINS='http://localhost' -p 3000:80 dunglas/mercure";
+        $command = "docker run -d -e JWT_KEY='aVerySecretKey' -e DEMO=1 -e ALLOW_ANONYMOUS=1 -e PUBLISH_ALLOWED_ORIGINS='http://localhost' -p 3000:80 dunglas/mercure:v0.7";
 
         $this->mercureDockerContainerId = Process::fromShellCommandline($command)
             ->mustRun()