diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index dea6fa6..d72c896 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -18,7 +18,7 @@ Github repo
 
   ```bash
   git remote add github \
-  https://github.com/antistatique/drupal-factory-lollipop.git
+  git@github.com:antistatique/drupal-factory-lollipop.git
   ```
 
 ## 🔧 Prerequisites
diff --git a/tests/src/Kernel/FactoryType/FileFactoryTypeTest.php b/tests/src/Kernel/FactoryType/FileFactoryTypeTest.php
index f8a1442..67ca38b 100644
--- a/tests/src/Kernel/FactoryType/FileFactoryTypeTest.php
+++ b/tests/src/Kernel/FactoryType/FileFactoryTypeTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\factory_lollipop\Kernel\FactoryType;
 
+use Prophecy\PhpUnit\ProphecyTrait;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Config\ImmutableConfig;
 use Drupal\Core\File\FileSystemInterface;
@@ -15,6 +16,7 @@
  */
 class FileFactoryTypeTest extends EntityKernelTestBase {
 
+  use ProphecyTrait;
   /**
    * The Node Factory resolver.
    *
@@ -70,7 +72,7 @@ public function testCreateNotFilePathAttribute(): void {
       $this->expectExceptionMessageMatches('#^File ".+/core/tests/fixtures/foo" does not exist\.$#');
     }
     else {
-      $this->expectExceptionMessageRegExp('#^File ".+/core/tests/fixtures/foo" does not exist\.$#');
+      $this->expectExceptionMessageMatches('#^File ".+/core/tests/fixtures/foo" does not exist\.$#');
     }
     $this->fileFactoryTypeResolver->create((object) ['path' => $file_path]);
   }
diff --git a/tests/src/Kernel/FactoryType/MediaTypeFactoryTypeTest.php b/tests/src/Kernel/FactoryType/MediaTypeFactoryTypeTest.php
index 89d9041..600d433 100644
--- a/tests/src/Kernel/FactoryType/MediaTypeFactoryTypeTest.php
+++ b/tests/src/Kernel/FactoryType/MediaTypeFactoryTypeTest.php
@@ -93,7 +93,7 @@ public function testCreateNotExistingSource(): void {
       $this->expectExceptionMessageMatches('#^The "foo" plugin does not exist\. Valid plugin IDs.+$#');
     }
     else {
-      $this->expectExceptionMessageRegExp('#^The "foo" plugin does not exist\. Valid plugin IDs.+$#');
+      $this->expectExceptionMessageMatches('#^The "foo" plugin does not exist\. Valid plugin IDs.+$#');
     }
     $this->mediaTypeFactoryTypeResolver->create((object) [
       'source' => 'foo',
diff --git a/tests/src/Unit/FactoryType/FileFactoryTypeTest.php b/tests/src/Unit/FactoryType/FileFactoryTypeTest.php
index 031323b..fd8ff51 100644
--- a/tests/src/Unit/FactoryType/FileFactoryTypeTest.php
+++ b/tests/src/Unit/FactoryType/FileFactoryTypeTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\factory_lollipop\Unit\Resolver\FactoryType;
 
+use Prophecy\PhpUnit\ProphecyTrait;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Config\ImmutableConfig;
 use Drupal\Core\File\FileSystemInterface;
@@ -15,6 +16,7 @@
  */
 class FileFactoryTypeTest extends UnitTestCase {
 
+  use ProphecyTrait;
   /**
    * The File Factory resolver.
    *
diff --git a/tests/src/Unit/FixtureFactoryTest.php b/tests/src/Unit/FixtureFactoryTest.php
index 603e92b..86a3ba0 100644
--- a/tests/src/Unit/FixtureFactoryTest.php
+++ b/tests/src/Unit/FixtureFactoryTest.php
@@ -55,9 +55,7 @@ public function setUp(): void {
    * @see \Drupal\Tests\factory_lollipop_test\Kernel\VocabularyFactoryTest
    */
   public function testCreate(): void {
-    $factory_type_foo = $this->getMockBuilder(FactoryTypeInterface::class)
-      ->disableOriginalConstructor()
-      ->getMock();
+    $factory_type_foo = $this->createMock(FactoryTypeInterface::class);
 
     $factory_type_foo
       ->expects(self::once())
@@ -70,18 +68,14 @@ public function testCreate(): void {
       ->method('create')
       ->with(self::equalTo((object) ['default' => 'lorem', 'arg1' => 'bar']));
 
-    $chain_factory_type_resolver = $this->getMockBuilder(ChainFactoryTypeResolver::class)
-      ->disableOriginalConstructor()
-      ->getMock();
+    $chain_factory_type_resolver = $this->createMock(ChainFactoryTypeResolver::class);
 
     $chain_factory_type_resolver
       ->expects(self::once())
       ->method('getResolvers')
       ->willReturn([$factory_type_foo]);
 
-    $chain_factory_resolver = $this->getMockBuilder(ChainFactoryResolver::class)
-      ->disableOriginalConstructor()
-      ->getMock();
+    $chain_factory_resolver = $this->createMock(ChainFactoryResolver::class);
 
     $factory_Lollipop = $this->getMockBuilder(FixtureFactory::class)
       ->setConstructorArgs([