diff --git a/src/Swoole/SwooleExtension.php b/src/Swoole/SwooleExtension.php
index 4bc97f380..a795a4737 100644
--- a/src/Swoole/SwooleExtension.php
+++ b/src/Swoole/SwooleExtension.php
@@ -53,6 +53,14 @@ public function setProcessName(string $appName, string $processName): void
      */
     public function cpuCount(): int
     {
-        return swoole_cpu_num();
+        if (function_exists('swoole_cpu_num')) {
+            return swoole_cpu_num();
+        }
+
+        if (class_exists(\OpenSwoole\Util::class) && method_exists(\OpenSwoole\Util::class, 'getCPUNum')) {
+            return \OpenSwoole\Util::getCPUNum();
+        }
+
+        return 1;
     }
 }
diff --git a/tests/SwooleExtensionTest.php b/tests/SwooleExtensionTest.php
new file mode 100644
index 000000000..4e4d05a61
--- /dev/null
+++ b/tests/SwooleExtensionTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Laravel\Octane\Tests;
+
+use Laravel\Octane\Swoole\SwooleExtension;
+
+class SwooleExtensionTest extends TestCase
+{
+    public function test_cpu_count()
+    {
+        $extension = new SwooleExtension();
+
+        $cpuCount = $extension->cpuCount();
+
+        $this->assertTrue($cpuCount > 0);
+    }
+}