diff --git a/module/Core/test/Crawling/CrawlingHelperTest.php b/module/Core/test/Crawling/CrawlingHelperTest.php
index 92901efc..7667fb93 100644
--- a/module/Core/test/Crawling/CrawlingHelperTest.php
+++ b/module/Core/test/Crawling/CrawlingHelperTest.php
@@ -5,39 +5,35 @@ declare(strict_types=1);
 namespace ShlinkioTest\Shlink\Core\Crawling;
 
 use Doctrine\ORM\EntityManagerInterface;
+use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
-use Prophecy\PhpUnit\ProphecyTrait;
-use Prophecy\Prophecy\ObjectProphecy;
 use Shlinkio\Shlink\Core\Crawling\CrawlingHelper;
 use Shlinkio\Shlink\Core\ShortUrl\Entity\ShortUrl;
 use Shlinkio\Shlink\Core\ShortUrl\Repository\ShortUrlRepositoryInterface;
 
 class CrawlingHelperTest extends TestCase
 {
-    use ProphecyTrait;
-
     private CrawlingHelper $helper;
-    private ObjectProphecy $em;
+    private MockObject $em;
 
     protected function setUp(): void
     {
-        $this->em = $this->prophesize(EntityManagerInterface::class);
-        $this->helper = new CrawlingHelper($this->em->reveal());
+        $this->em = $this->createMock(EntityManagerInterface::class);
+        $this->helper = new CrawlingHelper($this->em);
     }
 
     /** @test */
     public function listCrawlableShortCodesDelegatesIntoRepository(): void
     {
-        $repo = $this->prophesize(ShortUrlRepositoryInterface::class);
-        $findCrawlableShortCodes = $repo->findCrawlableShortCodes()->willReturn([]);
-        $getRepo = $this->em->getRepository(ShortUrl::class)->willReturn($repo->reveal());
+        $repo = $this->createMock(ShortUrlRepositoryInterface::class);
+        $repo->expects($this->once())->method('findCrawlableShortCodes')->willReturn([]);
+        $this->em->expects($this->once())->method('getRepository')->with($this->equalTo(ShortUrl::class))->willReturn(
+            $repo,
+        );
 
         $result = $this->helper->listCrawlableShortCodes();
         foreach ($result as $shortCode) {
-            // Result is a generator and therefore, it needs to be iterated
+            // $result is a generator and therefore, it needs to be iterated
         }
-
-        $findCrawlableShortCodes->shouldHaveBeenCalledOnce();
-        $getRepo->shouldHaveBeenCalledOnce();
     }
 }