diff --git a/composer.json b/composer.json
index 9812ea48..3a570e00 100644
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,7 @@
         "psr/container": "^1.0|^2.0",
         "psr/log": "^2.0|^3.0",
         "symfony/console": "^5.4|^6.0",
-        "yiisoft/definitions": "^1.0|^2.0|^3.0",
+        "yiisoft/definitions": "^3.3.1",
         "yiisoft/factory": "^1.3",
         "yiisoft/friendly-exception": "^1.0",
         "yiisoft/injector": "^1.0"
diff --git a/src/Adapter/AdapterInterface.php b/src/Adapter/AdapterInterface.php
index 0d8ceeda..fd6ca02a 100644
--- a/src/Adapter/AdapterInterface.php
+++ b/src/Adapter/AdapterInterface.php
@@ -4,6 +4,7 @@
 
 namespace Yiisoft\Queue\Adapter;
 
+use BackedEnum;
 use InvalidArgumentException;
 use Yiisoft\Queue\Enum\JobStatus;
 use Yiisoft\Queue\Message\MessageInterface;
@@ -40,7 +41,7 @@ public function push(MessageInterface $message): MessageInterface;
      */
     public function subscribe(callable $handlerCallback): void;
 
-    public function withChannel(string $channel): self;
+    public function withChannel(string|BackedEnum $channel): self;
 
     public function getChannelName(): string;
 }
diff --git a/src/Adapter/SynchronousAdapter.php b/src/Adapter/SynchronousAdapter.php
index 84148941..82ebde2a 100644
--- a/src/Adapter/SynchronousAdapter.php
+++ b/src/Adapter/SynchronousAdapter.php
@@ -4,7 +4,9 @@
 
 namespace Yiisoft\Queue\Adapter;
 
+use BackedEnum;
 use InvalidArgumentException;
+use Yiisoft\Queue\ChannelNormalizer;
 use Yiisoft\Queue\Enum\JobStatus;
 use Yiisoft\Queue\Message\MessageInterface;
 use Yiisoft\Queue\QueueInterface;
@@ -15,12 +17,14 @@ final class SynchronousAdapter implements AdapterInterface
 {
     private array $messages = [];
     private int $current = 0;
+    private string $channel;
 
     public function __construct(
         private WorkerInterface $worker,
         private QueueInterface $queue,
-        private string $channel = QueueInterface::DEFAULT_CHANNEL_NAME,
+        string|BackedEnum $channel = QueueInterface::DEFAULT_CHANNEL_NAME,
     ) {
+        $this->channel = ChannelNormalizer::normalize($channel);
     }
 
     public function __destruct()
@@ -74,8 +78,10 @@ public function subscribe(callable $handlerCallback): void
         $this->runExisting($handlerCallback);
     }
 
-    public function withChannel(string $channel): self
+    public function withChannel(string|BackedEnum $channel): self
     {
+        $channel = ChannelNormalizer::normalize($channel);
+
         if ($channel === $this->channel) {
             return $this;
         }
diff --git a/src/ChannelNormalizer.php b/src/ChannelNormalizer.php
new file mode 100644
index 00000000..1b178188
--- /dev/null
+++ b/src/ChannelNormalizer.php
@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\Queue;
+
+use BackedEnum;
+
+/**
+ * @internal
+ */
+final class ChannelNormalizer
+{
+    public static function normalize(string|BackedEnum $channel): string
+    {
+        return $channel instanceof BackedEnum ? (string) $channel->value : $channel;
+    }
+}
diff --git a/src/Debug/QueueProviderInterfaceProxy.php b/src/Debug/QueueProviderInterfaceProxy.php
index 5f00096e..22ce1307 100644
--- a/src/Debug/QueueProviderInterfaceProxy.php
+++ b/src/Debug/QueueProviderInterfaceProxy.php
@@ -4,6 +4,7 @@
 
 namespace Yiisoft\Queue\Debug;
 
+use BackedEnum;
 use Yiisoft\Queue\Provider\QueueProviderInterface;
 use Yiisoft\Queue\QueueInterface;
 
@@ -15,13 +16,13 @@ public function __construct(
     ) {
     }
 
-    public function get(string $channel): QueueInterface
+    public function get(string|BackedEnum $channel): QueueInterface
     {
         $queue = $this->queueProvider->get($channel);
         return new QueueDecorator($queue, $this->collector);
     }
 
-    public function has(string $channel): bool
+    public function has(string|BackedEnum $channel): bool
     {
         return $this->queueProvider->has($channel);
     }
diff --git a/src/Provider/AdapterFactoryQueueProvider.php b/src/Provider/AdapterFactoryQueueProvider.php
index 7f9cca30..36c2a193 100644
--- a/src/Provider/AdapterFactoryQueueProvider.php
+++ b/src/Provider/AdapterFactoryQueueProvider.php
@@ -4,10 +4,12 @@
 
 namespace Yiisoft\Queue\Provider;
 
+use BackedEnum;
 use Psr\Container\ContainerInterface;
 use Yiisoft\Definitions\Exception\InvalidConfigException;
 use Yiisoft\Factory\StrictFactory;
 use Yiisoft\Queue\Adapter\AdapterInterface;
+use Yiisoft\Queue\ChannelNormalizer;
 use Yiisoft\Queue\QueueInterface;
 
 use function array_key_exists;
@@ -50,17 +52,21 @@ public function __construct(
         }
     }
 
-    public function get(string $channel): QueueInterface
+    public function get(string|BackedEnum $channel): QueueInterface
     {
+        $channel = ChannelNormalizer::normalize($channel);
+
         $queue = $this->getOrTryToCreate($channel);
         if ($queue === null) {
             throw new ChannelNotFoundException($channel);
         }
+
         return $queue;
     }
 
-    public function has(string $channel): bool
+    public function has(string|BackedEnum $channel): bool
     {
+        $channel = ChannelNormalizer::normalize($channel);
         return $this->factory->has($channel);
     }
 
diff --git a/src/Provider/ChannelNotFoundException.php b/src/Provider/ChannelNotFoundException.php
index 2538cda7..ef9b3ace 100644
--- a/src/Provider/ChannelNotFoundException.php
+++ b/src/Provider/ChannelNotFoundException.php
@@ -4,8 +4,10 @@
 
 namespace Yiisoft\Queue\Provider;
 
+use BackedEnum;
 use LogicException;
 use Throwable;
+use Yiisoft\Queue\ChannelNormalizer;
 
 use function sprintf;
 
@@ -14,10 +16,10 @@
  */
 final class ChannelNotFoundException extends LogicException implements QueueProviderException
 {
-    public function __construct(string $channel, int $code = 0, ?Throwable $previous = null)
+    public function __construct(string|BackedEnum $channel, int $code = 0, ?Throwable $previous = null)
     {
         parent::__construct(
-            sprintf('Channel "%s" not found.', $channel),
+            sprintf('Channel "%s" not found.', ChannelNormalizer::normalize($channel)),
             $code,
             $previous,
         );
diff --git a/src/Provider/CompositeQueueProvider.php b/src/Provider/CompositeQueueProvider.php
index cd7f36ca..f699d256 100644
--- a/src/Provider/CompositeQueueProvider.php
+++ b/src/Provider/CompositeQueueProvider.php
@@ -4,6 +4,7 @@
 
 namespace Yiisoft\Queue\Provider;
 
+use BackedEnum;
 use Yiisoft\Queue\QueueInterface;
 
 /**
@@ -25,7 +26,7 @@ public function __construct(
         $this->providers = $providers;
     }
 
-    public function get(string $channel): QueueInterface
+    public function get(string|BackedEnum $channel): QueueInterface
     {
         foreach ($this->providers as $provider) {
             if ($provider->has($channel)) {
@@ -35,7 +36,7 @@ public function get(string $channel): QueueInterface
         throw new ChannelNotFoundException($channel);
     }
 
-    public function has(string $channel): bool
+    public function has(string|BackedEnum $channel): bool
     {
         foreach ($this->providers as $provider) {
             if ($provider->has($channel)) {
diff --git a/src/Provider/PrototypeQueueProvider.php b/src/Provider/PrototypeQueueProvider.php
index 4b7a2d4b..929d124a 100644
--- a/src/Provider/PrototypeQueueProvider.php
+++ b/src/Provider/PrototypeQueueProvider.php
@@ -4,6 +4,7 @@
 
 namespace Yiisoft\Queue\Provider;
 
+use BackedEnum;
 use Yiisoft\Queue\Adapter\AdapterInterface;
 use Yiisoft\Queue\QueueInterface;
 
@@ -22,12 +23,12 @@ public function __construct(
     ) {
     }
 
-    public function get(string $channel): QueueInterface
+    public function get(string|BackedEnum $channel): QueueInterface
     {
         return $this->baseQueue->withAdapter($this->baseAdapter->withChannel($channel));
     }
 
-    public function has(string $channel): bool
+    public function has(string|BackedEnum $channel): bool
     {
         return true;
     }
diff --git a/src/Provider/QueueProviderInterface.php b/src/Provider/QueueProviderInterface.php
index 7d3501b7..d833a84b 100644
--- a/src/Provider/QueueProviderInterface.php
+++ b/src/Provider/QueueProviderInterface.php
@@ -4,6 +4,7 @@
 
 namespace Yiisoft\Queue\Provider;
 
+use BackedEnum;
 use Yiisoft\Queue\QueueInterface;
 
 /**
@@ -14,21 +15,21 @@ interface QueueProviderInterface
     /**
      * Find a queue by channel name and returns it.
      *
-     * @param string $channel Channel name.
+     * @param BackedEnum|string $channel Channel name.
      *
      * @throws InvalidQueueConfigException If the queue configuration is invalid.
      * @throws ChannelNotFoundException If the channel is not found.
      * @throws QueueProviderException If the queue provider fails to provide a queue.
      * @return QueueInterface Queue instance.
      */
-    public function get(string $channel): QueueInterface;
+    public function get(string|BackedEnum $channel): QueueInterface;
 
     /**
      * Check if a queue with the specified channel name exists.
      *
-     * @param string $channel Channel name.
+     * @param BackedEnum|string $channel Channel name.
      *
      * @return bool Whether the queue exists.
      */
-    public function has(string $channel): bool;
+    public function has(string|BackedEnum $channel): bool;
 }
diff --git a/stubs/StubAdapter.php b/stubs/StubAdapter.php
index 0a8e06b2..1142f173 100644
--- a/stubs/StubAdapter.php
+++ b/stubs/StubAdapter.php
@@ -4,7 +4,9 @@
 
 namespace Yiisoft\Queue\Stubs;
 
+use BackedEnum;
 use Yiisoft\Queue\Adapter\AdapterInterface;
+use Yiisoft\Queue\ChannelNormalizer;
 use Yiisoft\Queue\Enum\JobStatus;
 use Yiisoft\Queue\Message\MessageInterface;
 use Yiisoft\Queue\QueueInterface;
@@ -14,8 +16,12 @@
  */
 final class StubAdapter implements AdapterInterface
 {
-    public function __construct(private string $channelName = QueueInterface::DEFAULT_CHANNEL_NAME)
-    {
+    private string $channelName;
+
+    public function __construct(
+        string|BackedEnum $channelName = QueueInterface::DEFAULT_CHANNEL_NAME
+    ) {
+        $this->channelName = ChannelNormalizer::normalize($channelName);
     }
 
     public function runExisting(callable $handlerCallback): void
@@ -36,11 +42,10 @@ public function subscribe(callable $handlerCallback): void
     {
     }
 
-    public function withChannel(string $channel): AdapterInterface
+    public function withChannel(string|BackedEnum $channel): AdapterInterface
     {
         $new = clone $this;
-        $new->channelName = $channel;
-
+        $new->channelName = ChannelNormalizer::normalize($channel);
         return $new;
     }
 
diff --git a/tests/App/FakeAdapter.php b/tests/App/FakeAdapter.php
index aec34910..237fef6d 100644
--- a/tests/App/FakeAdapter.php
+++ b/tests/App/FakeAdapter.php
@@ -4,7 +4,9 @@
 
 namespace Yiisoft\Queue\Tests\App;
 
+use BackedEnum;
 use Yiisoft\Queue\Adapter\AdapterInterface;
+use Yiisoft\Queue\ChannelNormalizer;
 use Yiisoft\Queue\Enum\JobStatus;
 use Yiisoft\Queue\Message\MessageInterface;
 
@@ -35,12 +37,11 @@ public function subscribe(callable $handlerCallback): void
         //skip
     }
 
-    public function withChannel(string $channel): AdapterInterface
+    public function withChannel(string|BackedEnum $channel): AdapterInterface
     {
         $instance = clone $this;
         $instance->pushMessages = [];
-        $instance->channel = $channel;
-
+        $instance->channel = ChannelNormalizer::normalize($channel);
         return $instance;
     }
 
diff --git a/tests/Benchmark/Support/VoidAdapter.php b/tests/Benchmark/Support/VoidAdapter.php
index b1a42966..6d074811 100644
--- a/tests/Benchmark/Support/VoidAdapter.php
+++ b/tests/Benchmark/Support/VoidAdapter.php
@@ -4,6 +4,7 @@
 
 namespace Yiisoft\Queue\Tests\Benchmark\Support;
 
+use BackedEnum;
 use InvalidArgumentException;
 use RuntimeException;
 use Yiisoft\Queue\Adapter\AdapterInterface;
@@ -45,7 +46,7 @@ public function subscribe(callable $handlerCallback): void
         throw new RuntimeException('Method is not implemented');
     }
 
-    public function withChannel(string $channel): AdapterInterface
+    public function withChannel(string|BackedEnum $channel): AdapterInterface
     {
         throw new RuntimeException('Method is not implemented');
     }
diff --git a/tests/Unit/SynchronousAdapterTest.php b/tests/Unit/Adapter/SynchronousAdapterTest.php
similarity index 71%
rename from tests/Unit/SynchronousAdapterTest.php
rename to tests/Unit/Adapter/SynchronousAdapterTest.php
index 6e913932..35e0f0a5 100644
--- a/tests/Unit/SynchronousAdapterTest.php
+++ b/tests/Unit/Adapter/SynchronousAdapterTest.php
@@ -2,13 +2,19 @@
 
 declare(strict_types=1);
 
-namespace Yiisoft\Queue\Tests\Unit;
+namespace Yiisoft\Queue\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\DataProvider;
+use Yiisoft\Queue\Adapter\SynchronousAdapter;
 use Yiisoft\Queue\Enum\JobStatus;
+use Yiisoft\Queue\Message\IdEnvelope;
 use Yiisoft\Queue\Message\Message;
 use Yiisoft\Queue\QueueInterface;
+use Yiisoft\Queue\Stubs\StubQueue;
+use Yiisoft\Queue\Stubs\StubWorker;
 use Yiisoft\Queue\Tests\TestCase;
-use Yiisoft\Queue\Message\IdEnvelope;
+use Yiisoft\Queue\Tests\Unit\Support\IntEnum;
+use Yiisoft\Queue\Tests\Unit\Support\StringEnum;
 
 final class SynchronousAdapterTest extends TestCase
 {
@@ -92,4 +98,27 @@ public function testStatusNotMessage(): void
         $this->expectExceptionMessage('There is no message with the given ID.');
         $adapter->status('1');
     }
+
+    public static function dataChannels(): iterable
+    {
+        yield 'string' => ['test', 'test'];
+        yield 'string-enum' => ['red', StringEnum::RED];
+        yield 'integer-enum' => ['1', IntEnum::ONE];
+    }
+
+    #[DataProvider('dataChannels')]
+    public function testWithChannel(string $expected, mixed $channel): void
+    {
+        $adapter = (new SynchronousAdapter(new StubWorker(), new StubQueue()))->withChannel($channel);
+
+        $this->assertSame($expected, $adapter->getChannelName());
+    }
+
+    #[DataProvider('dataChannels')]
+    public function testChannelInConstructor(string $expected, mixed $channel): void
+    {
+        $adapter = new SynchronousAdapter(new StubWorker(), new StubQueue(), $channel);
+
+        $this->assertSame($expected, $adapter->getChannelName());
+    }
 }
diff --git a/tests/Unit/Provider/AdapterFactoryQueueProviderTest.php b/tests/Unit/Provider/AdapterFactoryQueueProviderTest.php
index 24ca9096..94900a66 100644
--- a/tests/Unit/Provider/AdapterFactoryQueueProviderTest.php
+++ b/tests/Unit/Provider/AdapterFactoryQueueProviderTest.php
@@ -12,6 +12,7 @@
 use Yiisoft\Queue\Provider\InvalidQueueConfigException;
 use Yiisoft\Queue\Stubs\StubQueue;
 use Yiisoft\Queue\Stubs\StubAdapter;
+use Yiisoft\Queue\Tests\Unit\Support\StringEnum;
 
 use function sprintf;
 
@@ -100,4 +101,20 @@ public function testInvalidQueueConfigOnGet(): void
         );
         $provider->get('channel1');
     }
+
+    public function testGetHasByStringEnum(): void
+    {
+        $provider = new AdapterFactoryQueueProvider(
+            new StubQueue(),
+            [
+                'red' => StubAdapter::class,
+            ],
+        );
+
+        $queue = $provider->get(StringEnum::RED);
+
+        $this->assertSame('red', $queue->getChannelName());
+        $this->assertTrue($provider->has(StringEnum::RED));
+        $this->assertFalse($provider->has(StringEnum::GREEN));
+    }
 }
diff --git a/tests/Unit/Provider/ChannelNotFoundExceptionTest.php b/tests/Unit/Provider/ChannelNotFoundExceptionTest.php
new file mode 100644
index 00000000..699a94b2
--- /dev/null
+++ b/tests/Unit/Provider/ChannelNotFoundExceptionTest.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Provider;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use Yiisoft\Queue\Provider\ChannelNotFoundException;
+use Yiisoft\Queue\Tests\TestCase;
+use Yiisoft\Queue\Tests\Unit\Support\StringEnum;
+
+final class ChannelNotFoundExceptionTest extends TestCase
+{
+    public static function dataBase(): iterable
+    {
+        yield 'string' => ['channel1', 'channel1'];
+        yield 'string-enum' => ['red', StringEnum::RED];
+    }
+
+    #[DataProvider('dataBase')]
+    public function testBase(string $expectedChannelName, mixed $channel): void
+    {
+        $exception = new ChannelNotFoundException($channel);
+
+        $this->assertSame(
+            'Channel "' . $expectedChannelName . '" not found.',
+            $exception->getMessage(),
+        );
+    }
+}
diff --git a/tests/Unit/Stubs/StubAdapterTest.php b/tests/Unit/Stubs/StubAdapterTest.php
index b7337967..aad5c799 100644
--- a/tests/Unit/Stubs/StubAdapterTest.php
+++ b/tests/Unit/Stubs/StubAdapterTest.php
@@ -4,9 +4,12 @@
 
 namespace Yiisoft\Queue\Tests\Unit\Stubs;
 
+use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 use Yiisoft\Queue\Message\Message;
 use Yiisoft\Queue\Stubs\StubAdapter;
+use Yiisoft\Queue\Tests\Unit\Support\IntEnum;
+use Yiisoft\Queue\Tests\Unit\Support\StringEnum;
 
 final class StubAdapterTest extends TestCase
 {
@@ -21,4 +24,27 @@ public function testBase(): void
         $adapter->runExisting(static fn() => null);
         $adapter->subscribe(static fn() => null);
     }
+
+    public static function dataChannels(): iterable
+    {
+        yield 'string' => ['test', 'test'];
+        yield 'string-enum' => ['red', StringEnum::RED];
+        yield 'integer-enum' => ['1', IntEnum::ONE];
+    }
+
+    #[DataProvider('dataChannels')]
+    public function testWithChannel(string $expected, mixed $channel): void
+    {
+        $adapter = (new StubAdapter())->withChannel($channel);
+
+        $this->assertSame($expected, $adapter->getChannelName());
+    }
+
+    #[DataProvider('dataChannels')]
+    public function testChannelInConstructor(string $expected, mixed $channel): void
+    {
+        $adapter = new StubAdapter($channel);
+
+        $this->assertSame($expected, $adapter->getChannelName());
+    }
 }
diff --git a/tests/Unit/Support/IntEnum.php b/tests/Unit/Support/IntEnum.php
new file mode 100644
index 00000000..9f8cdb85
--- /dev/null
+++ b/tests/Unit/Support/IntEnum.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\Queue\Tests\Unit\Support;
+
+enum IntEnum: int
+{
+    case ONE = 1;
+    case TWO = 2;
+}
diff --git a/tests/Unit/Support/StringEnum.php b/tests/Unit/Support/StringEnum.php
new file mode 100644
index 00000000..3b623656
--- /dev/null
+++ b/tests/Unit/Support/StringEnum.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\Queue\Tests\Unit\Support;
+
+enum StringEnum: string
+{
+    case RED = 'red';
+    case GREEN = 'green';
+}