diff --git a/tests/Feature/Server/ApiTest.php b/tests/Feature/Server/ApiTest.php
index 4bb5e09..0d17c9f 100644
--- a/tests/Feature/Server/ApiTest.php
+++ b/tests/Feature/Server/ApiTest.php
@@ -35,6 +35,8 @@ class ApiTest extends TestCase
     {
         $this->serverFactory->getSocket()->close();
 
+        $this->await(\React\Promise\Timer\resolve(0.2, $this->loop));
+
         parent::tearDown();
     }
 
diff --git a/tests/Feature/Server/TunnelTest.php b/tests/Feature/Server/TunnelTest.php
index 3c4d05e..118957a 100644
--- a/tests/Feature/Server/TunnelTest.php
+++ b/tests/Feature/Server/TunnelTest.php
@@ -50,7 +50,7 @@ class TunnelTest extends TestCase
             $this->testTcpServer->close();
         }
 
-        sleep(0.5);
+        $this->await(\React\Promise\Timer\resolve(0.2, $this->loop));
 
         parent::tearDown();
     }