diff --git a/module/Core/config/dependencies.config.php b/module/Core/config/dependencies.config.php
index 67b6bff6..9852bdad 100644
--- a/module/Core/config/dependencies.config.php
+++ b/module/Core/config/dependencies.config.php
@@ -67,6 +67,7 @@ return [
             Tag\Repository\TagRepository::class => [EntityRepositoryFactory::class, Tag\Entity\Tag::class],
 
             Domain\DomainService::class => ConfigAbstractFactory::class,
+            Domain\Repository\DomainRepository::class => [EntityRepositoryFactory::class, Domain\Entity\Domain::class],
 
             Visit\VisitsTracker::class => ConfigAbstractFactory::class,
             Visit\RequestTracker::class => ConfigAbstractFactory::class,
@@ -167,7 +168,11 @@ return [
             ShortUrl\ShortUrlResolver::class,
         ],
         ShortUrl\Helper\ShortCodeUniquenessHelper::class => ['em', Config\Options\UrlShortenerOptions::class],
-        Domain\DomainService::class => ['em', Config\Options\UrlShortenerOptions::class],
+        Domain\DomainService::class => [
+            'em',
+            Config\Options\UrlShortenerOptions::class,
+            Domain\Repository\DomainRepository::class,
+        ],
 
         Util\DoctrineBatchHelper::class => ['em'],
         Util\RedirectResponseHelper::class => [Config\Options\RedirectOptions::class],
diff --git a/module/Core/src/Domain/DomainService.php b/module/Core/src/Domain/DomainService.php
index 18d66328..52bd6082 100644
--- a/module/Core/src/Domain/DomainService.php
+++ b/module/Core/src/Domain/DomainService.php
@@ -19,8 +19,11 @@ use function array_map;
 
 readonly class DomainService implements DomainServiceInterface
 {
-    public function __construct(private EntityManagerInterface $em, private UrlShortenerOptions $urlShortenerOptions)
-    {
+    public function __construct(
+        private EntityManagerInterface $em,
+        private UrlShortenerOptions $urlShortenerOptions,
+        private DomainRepositoryInterface $repo,
+    ) {
     }
 
     /**
@@ -49,9 +52,7 @@ readonly class DomainService implements DomainServiceInterface
      */
     private function defaultDomainAndRest(ApiKey|null $apiKey): array
     {
-        /** @var DomainRepositoryInterface $repo */
-        $repo = $this->em->getRepository(Domain::class);
-        $allDomains = $repo->findDomains($apiKey);
+        $allDomains = $this->repo->findDomains($apiKey);
         $defaultDomain = null;
         $restOfDomains = [];
 
@@ -71,7 +72,6 @@ readonly class DomainService implements DomainServiceInterface
      */
     public function getDomain(string $domainId): Domain
     {
-        /** @var Domain|null $domain */
         $domain = $this->em->find(Domain::class, $domainId);
         if ($domain === null) {
             throw DomainNotFoundException::fromId($domainId);
@@ -82,7 +82,7 @@ readonly class DomainService implements DomainServiceInterface
 
     public function findByAuthority(string $authority, ApiKey|null $apiKey = null): Domain|null
     {
-        return $this->em->getRepository(Domain::class)->findOneByAuthority($authority, $apiKey);
+        return $this->repo->findOneByAuthority($authority, $apiKey);
     }
 
     /**
diff --git a/module/Core/test/Domain/DomainServiceTest.php b/module/Core/test/Domain/DomainServiceTest.php
index b7f78c6b..fb601d51 100644
--- a/module/Core/test/Domain/DomainServiceTest.php
+++ b/module/Core/test/Domain/DomainServiceTest.php
@@ -15,7 +15,7 @@ use Shlinkio\Shlink\Core\Config\Options\UrlShortenerOptions;
 use Shlinkio\Shlink\Core\Domain\DomainService;
 use Shlinkio\Shlink\Core\Domain\Entity\Domain;
 use Shlinkio\Shlink\Core\Domain\Model\DomainItem;
-use Shlinkio\Shlink\Core\Domain\Repository\DomainRepository;
+use Shlinkio\Shlink\Core\Domain\Repository\DomainRepositoryInterface;
 use Shlinkio\Shlink\Core\Exception\DomainNotFoundException;
 use Shlinkio\Shlink\Rest\ApiKey\Model\ApiKeyMeta;
 use Shlinkio\Shlink\Rest\ApiKey\Model\RoleDefinition;
@@ -25,19 +25,23 @@ class DomainServiceTest extends TestCase
 {
     private DomainService $domainService;
     private MockObject & EntityManagerInterface $em;
+    private MockObject & DomainRepositoryInterface $repo;
 
     protected function setUp(): void
     {
         $this->em = $this->createMock(EntityManagerInterface::class);
-        $this->domainService = new DomainService($this->em, new UrlShortenerOptions(defaultDomain: 'default.com'));
+        $this->repo = $this->createMock(DomainRepositoryInterface::class);
+        $this->domainService = new DomainService(
+            $this->em,
+            new UrlShortenerOptions(defaultDomain: 'default.com'),
+            $this->repo,
+        );
     }
 
     #[Test, DataProvider('provideExcludedDomains')]
     public function listDomainsDelegatesIntoRepository(array $domains, array $expectedResult, ApiKey|null $apiKey): void
     {
-        $repo = $this->createMock(DomainRepository::class);
-        $repo->expects($this->once())->method('findDomains')->with($apiKey)->willReturn($domains);
-        $this->em->expects($this->once())->method('getRepository')->with(Domain::class)->willReturn($repo);
+        $this->repo->expects($this->once())->method('findDomains')->with($apiKey)->willReturn($domains);
 
         $result = $this->domainService->listDomains($apiKey);
 
@@ -127,11 +131,9 @@ class DomainServiceTest extends TestCase
     public function getOrCreateAlwaysPersistsDomain(Domain|null $foundDomain, ApiKey|null $apiKey): void
     {
         $authority = 'example.com';
-        $repo = $this->createMock(DomainRepository::class);
-        $repo->method('findOneByAuthority')->with($authority, $apiKey)->willReturn(
+        $this->repo->expects($this->once())->method('findOneByAuthority')->with($authority, $apiKey)->willReturn(
             $foundDomain,
         );
-        $this->em->expects($this->once())->method('getRepository')->with(Domain::class)->willReturn($repo);
         $this->em->expects($this->once())->method('persist')->with($foundDomain ?? $this->isInstanceOf(Domain::class));
         $this->em->expects($this->once())->method('flush');
 
@@ -149,9 +151,7 @@ class DomainServiceTest extends TestCase
         $domain = Domain::withAuthority($authority);
         $domain->setId('1');
         $apiKey = ApiKey::fromMeta(ApiKeyMeta::withRoles(RoleDefinition::forDomain($domain)));
-        $repo = $this->createMock(DomainRepository::class);
-        $repo->method('findOneByAuthority')->with($authority, $apiKey)->willReturn(null);
-        $this->em->expects($this->once())->method('getRepository')->with(Domain::class)->willReturn($repo);
+        $this->repo->expects($this->once())->method('findOneByAuthority')->with($authority, $apiKey)->willReturn(null);
         $this->em->expects($this->never())->method('persist');
         $this->em->expects($this->never())->method('flush');
 
@@ -166,9 +166,9 @@ class DomainServiceTest extends TestCase
         ApiKey|null $apiKey,
     ): void {
         $authority = 'example.com';
-        $repo = $this->createMock(DomainRepository::class);
-        $repo->method('findOneByAuthority')->with($authority, $apiKey)->willReturn($foundDomain);
-        $this->em->expects($this->once())->method('getRepository')->with(Domain::class)->willReturn($repo);
+        $this->repo->expects($this->once())->method('findOneByAuthority')->with($authority, $apiKey)->willReturn(
+            $foundDomain,
+        );
         $this->em->expects($this->once())->method('persist')->with($foundDomain ?? $this->isInstanceOf(Domain::class));
         $this->em->expects($this->once())->method('flush');