diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index dc377ac..ac18884 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -21,7 +21,7 @@
  */
 class Configuration implements ConfigurationInterface
 {
-    public function getConfigTreeBuilder()
+    public function getConfigTreeBuilder(): TreeBuilder
     {
         $treeBuilder = new TreeBuilder('massive_art_build');
         $rootNode = $treeBuilder->getRootNode();
diff --git a/Tests/Build/BuildRegistryTest.php b/Tests/Build/BuildRegistryTest.php
index b30769e..e91719b 100644
--- a/Tests/Build/BuildRegistryTest.php
+++ b/Tests/Build/BuildRegistryTest.php
@@ -14,9 +14,12 @@
 use Massive\Bundle\BuildBundle\Build\BuilderInterface;
 use Massive\Bundle\BuildBundle\Build\BuildRegistry;
 use Massive\Bundle\BuildBundle\Tests\BaseTestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 
 class BuildRegistryTest extends BaseTestCase
 {
+    use ProphecyTrait;
+
     /**
      * @var BuildRegistry
      */
diff --git a/Tests/Build/BuilderContextTest.php b/Tests/Build/BuilderContextTest.php
index 7301a6c..c36eea2 100644
--- a/Tests/Build/BuilderContextTest.php
+++ b/Tests/Build/BuilderContextTest.php
@@ -13,9 +13,12 @@
 
 use Massive\Bundle\BuildBundle\Build\BuilderContext;
 use Massive\Bundle\BuildBundle\Tests\BaseTestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 
 class BuilderContextTest extends BaseTestCase
 {
+    use ProphecyTrait;
+
     protected $input;
     protected $output;
 
diff --git a/Tests/Command/BuildCommandTest.php b/Tests/Command/BuildCommandTest.php
index 0653bfc..df49350 100644
--- a/Tests/Command/BuildCommandTest.php
+++ b/Tests/Command/BuildCommandTest.php
@@ -16,10 +16,13 @@
 use Massive\Bundle\BuildBundle\ContainerAwareInterface;
 use Massive\Bundle\BuildBundle\Tests\BaseTestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Symfony\Component\Console\Tester\CommandTester;
 
 class BuildCommandTest extends BaseTestCase
 {
+    use ProphecyTrait;
+
     public function setUp()
     {
         parent::setUp();
diff --git a/composer.json b/composer.json
index c10ff63..0ba301c 100644
--- a/composer.json
+++ b/composer.json
@@ -17,9 +17,8 @@
         "symfony/framework-bundle": "^4.3 || ^5.0 || ^6.0 || ^7.0"
     },
     "require-dev": {
-        "symfony/phpunit-bridge": "^5.0.4 || ^6.0 || ^7.0",
-        "matthiasnoback/symfony-dependency-injection-test": "^4.0 || ^5.0",
-        "phpspec/prophecy": "^1.14"
+        "symfony/phpunit-bridge": "^5.4.33|^6.3.10|^7.0.1",
+        "matthiasnoback/symfony-dependency-injection-test": "^4.0 || ^5.0"
     },
     "autoload": {
         "psr-4": {"Massive\\Bundle\\BuildBundle\\": "."},
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 8c3b0f3..be7c19f 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -19,5 +19,6 @@
         <env name="SYMFONY_DEPRECATIONS_HELPER" value="weak"/>
         <env name="SYMFONY_PHPUNIT_REMOVE_RETURN_TYPEHINT" value="1"/>
         <env name="SYMFONY_PHPUNIT_REMOVE" value="symfony/yaml"/>
+        <env name="SYMFONY_PHPUNIT_REQUIRE" value="phpspec/prophecy:^1.14 phpspec/prophecy-phpunit:^2.0"/>
     </php>
 </phpunit>