diff --git a/php-require-checker.config.json b/php-require-checker.config.json
index 0982c19..fb346ac 100644
--- a/php-require-checker.config.json
+++ b/php-require-checker.config.json
@@ -1,6 +1,6 @@
 {
   "symbol-whitelist": [
-    "int", "array", "null", "parent", "string", "void",
+    "int", "array", "null", "parent", "string", "void", "bool", "false",
     "Redis", "Memcached"
   ]
 }
diff --git a/src/PhpFileAdapter.php b/src/PhpFileAdapter.php
new file mode 100644
index 0000000..dae5388
--- /dev/null
+++ b/src/PhpFileAdapter.php
@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Ray\PsrCacheModule;
+
+use Serializable;
+use Symfony\Component\Cache\Adapter\PhpFilesAdapter as OriginAdapter;
+
+use function call_user_func_array;
+use function func_get_args;
+use function serialize;
+use function unserialize;
+
+class PhpFileAdapter extends OriginAdapter implements Serializable
+{
+    /** @var array<int, mixed> */
+    private $args;
+
+    public function __construct(string $namespace = '', int $defaultLifetime = 0, ?string $directory = null, bool $appendOnly = false)
+    {
+        $this->args = func_get_args();
+        parent::__construct($namespace, $defaultLifetime, $directory, $appendOnly);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function serialize()
+    {
+        return serialize($this->args);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function unserialize($data)
+    {
+        call_user_func_array([$this, '__construct'], unserialize($data));
+    }
+}
diff --git a/tests/PhpFileAdapterTest.php b/tests/PhpFileAdapterTest.php
new file mode 100644
index 0000000..b3d6760
--- /dev/null
+++ b/tests/PhpFileAdapterTest.php
@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Ray\PsrCacheModule;
+
+use PHPUnit\Framework\TestCase;
+
+use function serialize;
+use function unserialize;
+
+class PhpFileAdapterTest extends TestCase
+{
+    public function testSerialize(): string
+    {
+        $string = serialize(new PhpFileAdapter());
+        $this->assertIsString($string);
+
+        return $string;
+    }
+
+    /**
+     * @depends testSerialize
+     */
+    public function testUnserialize(string $string): void
+    {
+        $this->assertInstanceOf(PhpFileAdapter::class, unserialize($string));
+    }
+}