diff --git a/examples/swoole.php b/examples/swoole.php
new file mode 100644
index 0000000..7d19a61
--- /dev/null
+++ b/examples/swoole.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+use Spiral\Goridge;
+use Swoole\Coroutine as Co;
+use Swoole\Coroutine\Barrier;
+
+require 'vendor/autoload.php';
+
+/**
+ * This example demonstrates how to use the package within Swoole coroutines.
+ */
+Co::set(['hook_flags'=> SWOOLE_HOOK_ALL]);
+Co\Run(function () {
+    $barrier = Barrier::make();
+    for ($i = 0; $i < 3; $i++) {
+        go(function () use ($barrier) {
+            $rpc = new Goridge\RPC\RPC(
+                Goridge\Relay::create('tcp://127.0.0.1:6001')
+            );
+            echo $rpc->call('App.Hi', 'Antony');
+        });
+    }
+    Barrier::wait($barrier);
+});
diff --git a/src/RPC/RPC.php b/src/RPC/RPC.php
index 1e07e9f..adce49a 100644
--- a/src/RPC/RPC.php
+++ b/src/RPC/RPC.php
@@ -33,7 +33,7 @@ class RPC implements RPCInterface
     /**
      * @var positive-int
      */
-    private static int $seq = 1;
+    private int $seq = 1;
 
     /**
      * @param RelayInterface $relay
@@ -85,11 +85,11 @@ public function call(string $method, $payload, $options = null)
             throw new RPCException('Invalid RPC frame, options missing');
         }
 
-        if ($frame->options[0] !== self::$seq) {
+        if ($frame->options[0] !== $this->seq) {
             throw new RPCException('Invalid RPC frame, sequence mismatch');
         }
 
-        self::$seq++;
+        $this->seq++;
 
         return $this->decodeResponse($frame, $options);
     }
@@ -170,6 +170,6 @@ private function packFrame(string $method, $payload): Frame
         }
 
         $body = $method . $this->codec->encode($payload);
-        return new Frame($body, [self::$seq, \strlen($method)], $this->codec->getIndex());
+        return new Frame($body, [$this->seq, \strlen($method)], $this->codec->getIndex());
     }
 }
diff --git a/tests/Goridge/RPCTest.php b/tests/Goridge/RPCTest.php
index b786320..6468c58 100644
--- a/tests/Goridge/RPCTest.php
+++ b/tests/Goridge/RPCTest.php
@@ -6,6 +6,7 @@
 
 use Exception;
 use PHPUnit\Framework\TestCase;
+use Spiral\Goridge\Frame;
 use Spiral\Goridge\RelayInterface;
 use Spiral\Goridge\RPC\Codec\RawCodec;
 use Spiral\Goridge\RPC\Exception\CodecException;
@@ -155,7 +156,7 @@ public function testLongRawBody(): void
     {
         $conn = $this->makeRPC();
         $payload = random_bytes(65000 * 1000);
-        
+
         $resp = $conn->withCodec(new RawCodec())->call(
             'Service.EchoBinary',
             $payload
@@ -248,6 +249,54 @@ public function testJsonException(): void
         $conn->call('Service.Process', random_bytes(256));
     }
 
+    /**
+     * @doesNotPerformAssertions
+     */
+    public function testCallSequence(): void
+    {
+        $relay1 = $this->createMock(RelayInterface::class);
+        $relay1
+            ->method('waitFrame')
+            ->willReturnOnConsecutiveCalls(
+                new Frame('Service.Process{}', [1, 15]),
+                new Frame('Service.Process{}', [2, 15]),
+                new Frame('Service.Process{}', [3, 15])
+            );
+        $relay1
+            ->method('send')
+            ->withConsecutive(
+                [new Frame('Service.Process{"Name":"foo","Value":18}', [1, 15], 8)],
+                [new Frame('Service.Process{"Name":"foo","Value":18}', [2, 15], 8)],
+                [new Frame('Service.Process{"Name":"foo","Value":18}', [3, 15], 8)]
+            );
+
+        $relay2 = $this->createMock(RelayInterface::class);
+        $relay2
+            ->method('waitFrame')
+            ->willReturnOnConsecutiveCalls(
+                new Frame('Service.Process{}', [1, 15]),
+                new Frame('Service.Process{}', [2, 15]),
+                new Frame('Service.Process{}', [3, 15])
+            );
+        $relay2
+            ->method('send')
+            ->withConsecutive(
+                [new Frame('Service.Process{"Name":"bar","Value":18}', [1, 15], 8)],
+                [new Frame('Service.Process{"Name":"bar","Value":18}', [2, 15], 8)],
+                [new Frame('Service.Process{"Name":"bar","Value":18}', [3, 15], 8)]
+            );
+
+        $conn1 = new RPC($relay1);
+        $conn2 = new RPC($relay2);
+
+        $conn1->call('Service.Process', ['Name'  => 'foo', 'Value' => 18]);
+        $conn2->call('Service.Process', ['Name'  => 'bar', 'Value' => 18]);
+        $conn1->call('Service.Process', ['Name'  => 'foo', 'Value' => 18]);
+        $conn2->call('Service.Process', ['Name'  => 'bar', 'Value' => 18]);
+        $conn1->call('Service.Process', ['Name'  => 'foo', 'Value' => 18]);
+        $conn2->call('Service.Process', ['Name'  => 'bar', 'Value' => 18]);
+    }
+
     /**
      * @return RPC
      */