diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a8287ed..f5ce90a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,7 +28,7 @@ jobs:
 
       - name: Cache Composer packages
         id: composer-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: vendor
           key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
diff --git a/composer.json b/composer.json
index bb87705..aa9d3d8 100644
--- a/composer.json
+++ b/composer.json
@@ -41,5 +41,10 @@
     "scripts": {
         "lint": "vendor/bin/phpcs --standard=PSR12 src/",
         "test": "vendor/bin/phpspec run -f pretty"
+    },
+    "config": {
+        "allow-plugins": {
+            "php-http/discovery": true
+        }
     }
 }
diff --git a/spec/Packagist/Api/ClientSpec.php b/spec/Packagist/Api/ClientSpec.php
index c4b590d..972f10d 100644
--- a/spec/Packagist/Api/ClientSpec.php
+++ b/spec/Packagist/Api/ClientSpec.php
@@ -106,11 +106,11 @@ public function it_gets_composer_package_details(HttpClient $client, Factory $fa
         $response->getBody()->shouldBeCalled()->willReturn($body);
         $body->getContents()->shouldBeCalledTimes(2)->willReturn($data1, $data2);
 
-        $client->request('GET', 'https://packagist.org/p2/sylius/sylius.json')
+        $client->request('GET', 'https://repo.packagist.org/p2/sylius/sylius.json')
             ->shouldBeCalled()
             ->willReturn($response);
 
-        $client->request('GET', 'https://packagist.org/p2/sylius/sylius~dev.json')
+        $client->request('GET', 'https://repo.packagist.org/p2/sylius/sylius~dev.json')
             ->shouldBeCalled()
             ->willReturn($response);
 
@@ -140,7 +140,7 @@ public function it_gets_composer_releases_package_details(HttpClient $client, Fa
         $response->getBody()->shouldBeCalled()->willReturn($body);
         $body->getContents()->shouldBeCalled()->willReturn($data);
 
-        $client->request('GET', 'https://packagist.org/p2/sylius/sylius.json')
+        $client->request('GET', 'https://repo.packagist.org/p2/sylius/sylius.json')
             ->shouldBeCalled()
             ->willReturn($response);
 
diff --git a/src/Packagist/Api/Client.php b/src/Packagist/Api/Client.php
index 7ada102..4788f65 100644
--- a/src/Packagist/Api/Client.php
+++ b/src/Packagist/Api/Client.php
@@ -287,6 +287,10 @@ private function filterAdvisories(array $advisories, array $packages): array
      */
     protected function url(string $route): string
     {
+        if (preg_match('{^/p\d?/}', $route) && $this->packagistUrl === 'https://packagist.org') {
+            return 'https://repo.packagist.org' . $route;
+        }
+
         return $this->packagistUrl . $route;
     }