diff --git a/composer.json b/composer.json
index 22f07d97..1adf0562 100644
--- a/composer.json
+++ b/composer.json
@@ -33,8 +33,8 @@
         "react/promise-timer": "^1.9"
     },
     "require-dev": {
-        "clue/block-react": "^1.2",
-        "phpunit/phpunit": "^9.3 || ^4.8.35"
+        "phpunit/phpunit": "^9.3 || ^4.8.35",
+        "react/async": "^4 || ^3 || ^2"
     },
     "autoload": {
         "psr-4": { "React\\Dns\\": "src" }
diff --git a/tests/Query/TcpTransportExecutorTest.php b/tests/Query/TcpTransportExecutorTest.php
index 583c5ce0..202fdbce 100644
--- a/tests/Query/TcpTransportExecutorTest.php
+++ b/tests/Query/TcpTransportExecutorTest.php
@@ -266,9 +266,9 @@ function ($e) use (&$exception) {
             }
         );
 
-        \Clue\React\Block\sleep(0.01);
+        \React\Async\await(\React\Promise\Timer\sleep(0.01));
         if ($exception === null) {
-            \Clue\React\Block\sleep(0.2);
+            \React\Async\await(\React\Promise\Timer\sleep(0.2));
         }
 
         /** @var \RuntimeException $exception */
@@ -437,9 +437,9 @@ function ($e) use (&$exception) {
             }
         );
 
-        \Clue\React\Block\sleep(0.01);
+        \React\Async\await(\React\Promise\Timer\sleep(0.01));
         if ($exception === null) {
-            \Clue\React\Block\sleep(0.2);
+            \React\Async\await(\React\Promise\Timer\sleep(0.2));
         }
 
         /** @var \RuntimeException $exception */
@@ -476,7 +476,7 @@ function ($e) use (&$wait) {
             }
         );
 
-        \Clue\React\Block\sleep(0.2);
+        \React\Async\await(\React\Promise\Timer\sleep(0.2));
         $this->assertTrue($wait);
 
         $this->assertNotNull($client);
@@ -513,7 +513,7 @@ function ($e) use (&$wait) {
             }
         );
 
-        \Clue\React\Block\sleep(0.2);
+        \React\Async\await(\React\Promise\Timer\sleep(0.2));
         $this->assertTrue($wait);
 
         $this->assertNotNull($client);
@@ -548,9 +548,9 @@ function ($e) use (&$exception) {
             }
         );
 
-        \Clue\React\Block\sleep(0.01);
+        \React\Async\await(\React\Promise\Timer\sleep(0.01));
         if ($exception === null) {
-            \Clue\React\Block\sleep(0.2);
+            \React\Async\await(\React\Promise\Timer\sleep(0.2));
         }
 
         /** @var \RuntimeException $exception */
@@ -600,9 +600,9 @@ function ($e) use (&$exception) {
             }
         );
 
-        \Clue\React\Block\sleep(0.01);
+        \React\Async\await(\React\Promise\Timer\sleep(0.01));
         if ($exception === null) {
-            \Clue\React\Block\sleep(0.2);
+            \React\Async\await(\React\Promise\Timer\sleep(0.2));
         }
 
         /** @var \RuntimeException $exception */
@@ -652,9 +652,9 @@ function ($e) use (&$exception) {
             }
         );
 
-        \Clue\React\Block\sleep(0.01);
+        \React\Async\await(\React\Promise\Timer\sleep(0.01));
         if ($exception === null) {
-            \Clue\React\Block\sleep(0.2);
+            \React\Async\await(\React\Promise\Timer\sleep(0.2));
         }
 
         /** @var \RuntimeException $exception */
@@ -687,7 +687,7 @@ public function testQueryResolvesIfServerSendsValidResponse()
         $query = new Query('google.com', Message::TYPE_A, Message::CLASS_IN);
 
         $promise = $executor->query($query);
-        $response = \Clue\React\Block\await($promise, null, 0.2);
+        $response = \React\Async\await(\React\Promise\Timer\timeout($promise, 0.2));
 
         $this->assertInstanceOf('React\Dns\Model\Message', $response);
     }
diff --git a/tests/Query/TimeoutExecutorTest.php b/tests/Query/TimeoutExecutorTest.php
index f413f331..bab6d616 100644
--- a/tests/Query/TimeoutExecutorTest.php
+++ b/tests/Query/TimeoutExecutorTest.php
@@ -113,7 +113,8 @@ public function testWrappedWillBeCancelledOnTimeout()
         $this->assertEquals(0, $cancelled);
 
         try {
-            \Clue\React\Block\await($promise);
+            \React\Async\await(\React\Promise\Timer\sleep(0));
+            \React\Async\await($promise);
             $this->fail();
         } catch (TimeoutException $exception) {
             $this->assertEquals('DNS query for igor.io (A) timed out' , $exception->getMessage());
diff --git a/tests/Query/UdpTransportExecutorTest.php b/tests/Query/UdpTransportExecutorTest.php
index 066bfcf6..81cf9497 100644
--- a/tests/Query/UdpTransportExecutorTest.php
+++ b/tests/Query/UdpTransportExecutorTest.php
@@ -273,7 +273,7 @@ function ($e) use (&$wait) {
             }
         );
 
-        \Clue\React\Block\sleep(0.2);
+        \React\Async\await(\React\Promise\Timer\sleep(0.2));
         $this->assertTrue($wait);
 
         $promise->cancel();
@@ -311,7 +311,7 @@ function ($e) use (&$wait) {
             }
         );
 
-        \Clue\React\Block\sleep(0.2);
+        \React\Async\await(\React\Promise\Timer\sleep(0.2));
         $this->assertTrue($wait);
 
         $promise->cancel();
@@ -347,7 +347,7 @@ public function testQueryRejectsIfServerSendsTruncatedResponse()
             'DNS query for google.com (A) failed: The DNS server udp://' . $address . ' returned a truncated result for a UDP query',
             defined('SOCKET_EMSGSIZE') ? SOCKET_EMSGSIZE : 90
         );
-        \Clue\React\Block\await($promise, null, 0.1);
+        \React\Async\await(\React\Promise\Timer\timeout($promise, 0.1));
     }
 
     public function testQueryResolvesIfServerSendsValidResponse()
@@ -373,7 +373,7 @@ public function testQueryResolvesIfServerSendsValidResponse()
         $query = new Query('google.com', Message::TYPE_A, Message::CLASS_IN);
 
         $promise = $executor->query($query);
-        $response = \Clue\React\Block\await($promise, null, 0.2);
+        $response = \React\Async\await(\React\Promise\Timer\timeout($promise, 0.2));
 
         $this->assertInstanceOf('React\Dns\Model\Message', $response);
     }