diff --git a/composer.lock b/composer.lock
index 3bf6500..e774389 100644
--- a/composer.lock
+++ b/composer.lock
@@ -709,16 +709,16 @@
         },
         {
             "name": "nikic/php-parser",
-            "version": "v4.10.5",
+            "version": "v4.11.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nikic/PHP-Parser.git",
-                "reference": "4432ba399e47c66624bc73c8c0f811e5c109576f"
+                "reference": "fe14cf3672a149364fb66dfe11bf6549af899f94"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/4432ba399e47c66624bc73c8c0f811e5c109576f",
-                "reference": "4432ba399e47c66624bc73c8c0f811e5c109576f",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/fe14cf3672a149364fb66dfe11bf6549af899f94",
+                "reference": "fe14cf3672a149364fb66dfe11bf6549af899f94",
                 "shasum": ""
             },
             "require": {
@@ -759,9 +759,9 @@
             ],
             "support": {
                 "issues": "https://github.com/nikic/PHP-Parser/issues",
-                "source": "https://github.com/nikic/PHP-Parser/tree/v4.10.5"
+                "source": "https://github.com/nikic/PHP-Parser/tree/v4.11.0"
             },
-            "time": "2021-05-03T19:11:20+00:00"
+            "time": "2021-07-03T13:36:55+00:00"
         },
         {
             "name": "openlss/lib-array2xml",
@@ -3419,16 +3419,16 @@
         },
         {
             "name": "symfony/string",
-            "version": "v5.3.2",
+            "version": "v5.3.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/string.git",
-                "reference": "0732e97e41c0a590f77e231afc16a327375d50b0"
+                "reference": "bd53358e3eccec6a670b5f33ab680d8dbe1d4ae1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/string/zipball/0732e97e41c0a590f77e231afc16a327375d50b0",
-                "reference": "0732e97e41c0a590f77e231afc16a327375d50b0",
+                "url": "https://api.github.com/repos/symfony/string/zipball/bd53358e3eccec6a670b5f33ab680d8dbe1d4ae1",
+                "reference": "bd53358e3eccec6a670b5f33ab680d8dbe1d4ae1",
                 "shasum": ""
             },
             "require": {
@@ -3482,7 +3482,7 @@
                 "utf8"
             ],
             "support": {
-                "source": "https://github.com/symfony/string/tree/v5.3.2"
+                "source": "https://github.com/symfony/string/tree/v5.3.3"
             },
             "funding": [
                 {
@@ -3498,7 +3498,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-06-06T09:51:56+00:00"
+            "time": "2021-06-27T11:44:38+00:00"
         },
         {
             "name": "textalk/websocket",
diff --git a/psalm.xml b/psalm.xml
index 39c8ab6..aa72fc4 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -13,8 +13,11 @@
         </ignoreFiles>
     </projectFiles>
     <stubs>
+        <file name="vendor/swoole/ide-helper/output/swoole/aliases.php"/>
+        <file name="vendor/swoole/ide-helper/output/swoole/functions.php"/>
         <file name="vendor/swoole/ide-helper/output/swoole/constants.php"/>
         <file name="vendor/swoole/ide-helper/output/swoole/namespace/Server.php"/>
+        <file name="vendor/swoole/ide-helper/output/swoole/namespace/Process.php"/>
         <file name="vendor/swoole/ide-helper/output/swoole/namespace/Http/Server.php"/>
         <file name="vendor/swoole/ide-helper/output/swoole/namespace/Http/Request.php"/>
         <file name="vendor/swoole/ide-helper/output/swoole/namespace/WebSocket/Frame.php"/>
diff --git a/src/WebSocket/Adapter/Swoole.php b/src/WebSocket/Adapter/Swoole.php
index bee073f..28c4be1 100644
--- a/src/WebSocket/Adapter/Swoole.php
+++ b/src/WebSocket/Adapter/Swoole.php
@@ -26,6 +26,9 @@ public function __construct(string $host = '0.0.0.0', int $port = 80)
         parent::__construct($host, $port);
 
         $this->server = new Server($this->host, $this->port);
+
+        // Set maximum connections to Swoole's limit of 1 Million
+        $this->config['max_connection'] = 1_000_000;
     }
 
     public function start(): void
@@ -42,16 +45,18 @@ public function shutdown(): void
     public function send(array $connections, string $message): void
     {
         foreach ($connections as $connection) {
-            if ($this->server->exist($connection) && $this->server->isEstablished($connection)) {
-                $this->server->push(
-                    $connection,
-                    $message,
-                    SWOOLE_WEBSOCKET_OPCODE_TEXT,
-                    SWOOLE_WEBSOCKET_FLAG_FIN | SWOOLE_WEBSOCKET_FLAG_COMPRESS
-                );
-            } else {
-                $this->server->close($connection);
-            }
+            go(function () use ($connection, $message) {
+                if ($this->server->exist($connection) && $this->server->isEstablished($connection)) {
+                    $this->server->push(
+                        $connection,
+                        $message,
+                        SWOOLE_WEBSOCKET_OPCODE_TEXT,
+                        SWOOLE_WEBSOCKET_FLAG_FIN | SWOOLE_WEBSOCKET_FLAG_COMPRESS
+                    );
+                } else {
+                    $this->server->close($connection);
+                }
+            });
         }
     }
 
@@ -65,7 +70,7 @@ public function onStart(callable $callback): self
         $this->server->on('start', function () use ($callback) {
             call_user_func($callback);
 
-            Process::signal(2, function () {
+            Process::signal('2', function () {
                 $this->shutdown();
             });
         });