diff --git a/Command/ScheduleCommand.php b/Command/ScheduleCommand.php
index ba727237..bc8d4ba4 100644
--- a/Command/ScheduleCommand.php
+++ b/Command/ScheduleCommand.php
@@ -8,10 +8,8 @@
 use JMS\JobQueueBundle\Console\CronCommand;
 use JMS\JobQueueBundle\Cron\CommandScheduler;
 use JMS\JobQueueBundle\Cron\JobScheduler;
-use JMS\JobQueueBundle\Cron\SchedulerRegistry;
 use JMS\JobQueueBundle\Entity\CronJob;
 use JMS\JobQueueBundle\Entity\Job;
-use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
@@ -150,6 +148,7 @@ private function populateJobSchedulers()
     {
         $schedulers = [];
         foreach ($this->schedulers as $scheduler) {
+            /** @var JobScheduler $scheduler */
             foreach ($scheduler->getCommands() as $name) {
                 $schedulers[$name] = $scheduler;
             }
diff --git a/Tests/Functional/CronTest.php b/Tests/Functional/CronTest.php
index 400c17ea..16f4476a 100644
--- a/Tests/Functional/CronTest.php
+++ b/Tests/Functional/CronTest.php
@@ -18,7 +18,7 @@ class CronTest extends BaseTestCase
     public function testSchedulesCommands()
     {
         $output = $this->doRun(array('--min-job-interval' => 1, '--max-runtime' => 12));
-        $this->assertEquals(2, substr_count($output, 'Scheduling command scheduled-every-few-seconds'));
+        $this->assertEquals(2, substr_count($output, 'Scheduling command scheduled-every-few-seconds'), $output);
     }
 
     protected function setUp()
diff --git a/Tests/Functional/TestBundle/Command/ScheduledEveryFewSecondsCommand.php b/Tests/Functional/TestBundle/Command/ScheduledEveryFewSecondsCommand.php
index e3c563a6..f136d0ae 100644
--- a/Tests/Functional/TestBundle/Command/ScheduledEveryFewSecondsCommand.php
+++ b/Tests/Functional/TestBundle/Command/ScheduledEveryFewSecondsCommand.php
@@ -4,27 +4,24 @@
 
 use JMS\JobQueueBundle\Console\CronCommand;
 use JMS\JobQueueBundle\Entity\Job;
-use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
+use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 
-class ScheduledEveryFewSecondsCommand extends ContainerAwareCommand implements CronCommand
+class ScheduledEveryFewSecondsCommand extends Command implements CronCommand
 {
-    public function shouldBeScheduled(\DateTime $lastRunAt)
+    protected static $defaultName = 'scheduled-every-few-seconds';
+
+    public function shouldBeScheduled(\DateTime $lastRunAt): bool
     {
         return time() - $lastRunAt->getTimestamp() >= 5;
     }
 
-    public function createCronJob(\DateTime $_)
+    public function createCronJob(\DateTime $_): Job
     {
         return new Job('scheduled-every-few-seconds');
     }
 
-    protected function configure()
-    {
-        $this->setName('scheduled-every-few-seconds');
-    }
-
     protected function execute(InputInterface $input, OutputInterface $output)
     {
         $output->writeln('Done');
diff --git a/Tests/Functional/config/framework.yml b/Tests/Functional/config/framework.yml
index c3781771..c49670f6 100644
--- a/Tests/Functional/config/framework.yml
+++ b/Tests/Functional/config/framework.yml
@@ -6,5 +6,7 @@ framework:
 
 services:
     JMS\JobQueueBundle\Tests\Functional\TestBundle\Command\:
+        autoconfigure: true
+        autowire: true
         resource: '../TestBundle/Command'
         tags: ['console.command']
diff --git a/composer.json b/composer.json
index f4163386..f1b8618b 100644
--- a/composer.json
+++ b/composer.json
@@ -13,10 +13,10 @@
     ],
     "require": {
         "php": "^7.1",
-        "symfony/framework-bundle": "^4.0",
-        "symfony/debug": "^4.0",
+        "symfony/framework-bundle": "^3.4 || ^4.0",
+        "symfony/debug": "^3.4 || ^4.0",
         "doctrine/common": "^2.3",
-        "symfony/process": "^4.0"
+        "symfony/process": "^3.4 || ^4.0"
     },
     "require-dev": {
         "doctrine/doctrine-fixtures-bundle": "*",
diff --git a/composer.lock b/composer.lock
index f31217b8..d600e46a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "ba78636904c98107a58c6e113e797670",
+    "content-hash": "ace3489891b0f88ec1f4c02b9c634279",
     "packages": [
         {
             "name": "doctrine/annotations",
@@ -76,16 +76,16 @@
         },
         {
             "name": "doctrine/cache",
-            "version": "v1.7.1",
+            "version": "v1.8.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/cache.git",
-                "reference": "b3217d58609e9c8e661cd41357a54d926c4a2a1a"
+                "reference": "d768d58baee9a4862ca783840eca1b9add7a7f57"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/cache/zipball/b3217d58609e9c8e661cd41357a54d926c4a2a1a",
-                "reference": "b3217d58609e9c8e661cd41357a54d926c4a2a1a",
+                "url": "https://api.github.com/repos/doctrine/cache/zipball/d768d58baee9a4862ca783840eca1b9add7a7f57",
+                "reference": "d768d58baee9a4862ca783840eca1b9add7a7f57",
                 "shasum": ""
             },
             "require": {
@@ -96,8 +96,9 @@
             },
             "require-dev": {
                 "alcaeus/mongo-php-adapter": "^1.1",
+                "doctrine/coding-standard": "^4.0",
                 "mongodb/mongodb": "^1.1",
-                "phpunit/phpunit": "^5.7",
+                "phpunit/phpunit": "^7.0",
                 "predis/predis": "~1.0"
             },
             "suggest": {
@@ -106,7 +107,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.7.x-dev"
+                    "dev-master": "1.8.x-dev"
                 }
             },
             "autoload": {
@@ -141,12 +142,12 @@
                 }
             ],
             "description": "Caching library offering an object-oriented API for many cache backends",
-            "homepage": "http://www.doctrine-project.org",
+            "homepage": "https://www.doctrine-project.org",
             "keywords": [
                 "cache",
                 "caching"
             ],
-            "time": "2017-08-25T07:02:50+00:00"
+            "time": "2018-08-21T18:01:43+00:00"
         },
         {
             "name": "doctrine/collections",
@@ -217,33 +218,39 @@
         },
         {
             "name": "doctrine/common",
-            "version": "v2.8.1",
+            "version": "v2.9.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/common.git",
-                "reference": "f68c297ce6455e8fd794aa8ffaf9fa458f6ade66"
+                "reference": "a210246d286c77d2b89040f8691ba7b3a713d2c1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/common/zipball/f68c297ce6455e8fd794aa8ffaf9fa458f6ade66",
-                "reference": "f68c297ce6455e8fd794aa8ffaf9fa458f6ade66",
+                "url": "https://api.github.com/repos/doctrine/common/zipball/a210246d286c77d2b89040f8691ba7b3a713d2c1",
+                "reference": "a210246d286c77d2b89040f8691ba7b3a713d2c1",
                 "shasum": ""
             },
             "require": {
-                "doctrine/annotations": "1.*",
-                "doctrine/cache": "1.*",
-                "doctrine/collections": "1.*",
-                "doctrine/inflector": "1.*",
-                "doctrine/lexer": "1.*",
-                "php": "~7.1"
+                "doctrine/annotations": "^1.0",
+                "doctrine/cache": "^1.0",
+                "doctrine/collections": "^1.0",
+                "doctrine/event-manager": "^1.0",
+                "doctrine/inflector": "^1.0",
+                "doctrine/lexer": "^1.0",
+                "doctrine/persistence": "^1.0",
+                "doctrine/reflection": "^1.0",
+                "php": "^7.1"
             },
             "require-dev": {
-                "phpunit/phpunit": "^5.7"
+                "doctrine/coding-standard": "^1.0",
+                "phpunit/phpunit": "^6.3",
+                "squizlabs/php_codesniffer": "^3.0",
+                "symfony/phpunit-bridge": "^4.0.5"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8.x-dev"
+                    "dev-master": "2.9.x-dev"
                 }
             },
             "autoload": {
@@ -275,10 +282,14 @@
                 {
                     "name": "Johannes Schmitt",
                     "email": "schmittjoh@gmail.com"
+                },
+                {
+                    "name": "Marco Pivetta",
+                    "email": "ocramius@gmail.com"
                 }
             ],
             "description": "Common Library for Doctrine projects",
-            "homepage": "http://www.doctrine-project.org",
+            "homepage": "https://www.doctrine-project.org",
             "keywords": [
                 "annotations",
                 "collections",
@@ -286,7 +297,81 @@
                 "persistence",
                 "spl"
             ],
-            "time": "2017-08-31T08:43:38+00:00"
+            "time": "2018-07-12T21:16:12+00:00"
+        },
+        {
+            "name": "doctrine/event-manager",
+            "version": "v1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/event-manager.git",
+                "reference": "a520bc093a0170feeb6b14e9d83f3a14452e64b3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/event-manager/zipball/a520bc093a0170feeb6b14e9d83f3a14452e64b3",
+                "reference": "a520bc093a0170feeb6b14e9d83f3a14452e64b3",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1"
+            },
+            "conflict": {
+                "doctrine/common": "<2.9@dev"
+            },
+            "require-dev": {
+                "doctrine/coding-standard": "^4.0",
+                "phpunit/phpunit": "^7.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Doctrine\\Common\\": "lib/Doctrine/Common"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Roman Borschel",
+                    "email": "roman@code-factory.org"
+                },
+                {
+                    "name": "Benjamin Eberlei",
+                    "email": "kontakt@beberlei.de"
+                },
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Jonathan Wage",
+                    "email": "jonwage@gmail.com"
+                },
+                {
+                    "name": "Johannes Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                },
+                {
+                    "name": "Marco Pivetta",
+                    "email": "ocramius@gmail.com"
+                }
+            ],
+            "description": "Doctrine Event Manager component",
+            "homepage": "https://www.doctrine-project.org/projects/event-manager.html",
+            "keywords": [
+                "event",
+                "eventdispatcher",
+                "eventmanager"
+            ],
+            "time": "2018-06-11T11:59:03+00:00"
         },
         {
             "name": "doctrine/inflector",
@@ -409,6 +494,159 @@
             ],
             "time": "2014-09-09T13:34:57+00:00"
         },
+        {
+            "name": "doctrine/persistence",
+            "version": "v1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/persistence.git",
+                "reference": "af1ec238659a83e320f03e0e454e200f689b4b97"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/persistence/zipball/af1ec238659a83e320f03e0e454e200f689b4b97",
+                "reference": "af1ec238659a83e320f03e0e454e200f689b4b97",
+                "shasum": ""
+            },
+            "require": {
+                "doctrine/annotations": "^1.0",
+                "doctrine/cache": "^1.0",
+                "doctrine/collections": "^1.0",
+                "doctrine/event-manager": "^1.0",
+                "doctrine/reflection": "^1.0",
+                "php": "^7.1"
+            },
+            "conflict": {
+                "doctrine/common": "<2.9@dev"
+            },
+            "require-dev": {
+                "doctrine/coding-standard": "^4.0",
+                "phpstan/phpstan": "^0.8",
+                "phpunit/phpunit": "^7.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Doctrine\\Common\\": "lib/Doctrine/Common"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Roman Borschel",
+                    "email": "roman@code-factory.org"
+                },
+                {
+                    "name": "Benjamin Eberlei",
+                    "email": "kontakt@beberlei.de"
+                },
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Jonathan Wage",
+                    "email": "jonwage@gmail.com"
+                },
+                {
+                    "name": "Johannes Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                },
+                {
+                    "name": "Marco Pivetta",
+                    "email": "ocramius@gmail.com"
+                }
+            ],
+            "description": "Doctrine Persistence abstractions.",
+            "homepage": "https://doctrine-project.org/projects/persistence.html",
+            "keywords": [
+                "persistence"
+            ],
+            "time": "2018-07-12T12:37:50+00:00"
+        },
+        {
+            "name": "doctrine/reflection",
+            "version": "v1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/reflection.git",
+                "reference": "02538d3f95e88eb397a5f86274deb2c6175c2ab6"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/reflection/zipball/02538d3f95e88eb397a5f86274deb2c6175c2ab6",
+                "reference": "02538d3f95e88eb397a5f86274deb2c6175c2ab6",
+                "shasum": ""
+            },
+            "require": {
+                "doctrine/annotations": "^1.0",
+                "ext-tokenizer": "*",
+                "php": "^7.1"
+            },
+            "require-dev": {
+                "doctrine/coding-standard": "^4.0",
+                "doctrine/common": "^2.8",
+                "phpstan/phpstan": "^0.9.2",
+                "phpstan/phpstan-phpunit": "^0.9.4",
+                "phpunit/phpunit": "^7.0",
+                "squizlabs/php_codesniffer": "^3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Doctrine\\Common\\": "lib/Doctrine/Common"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Roman Borschel",
+                    "email": "roman@code-factory.org"
+                },
+                {
+                    "name": "Benjamin Eberlei",
+                    "email": "kontakt@beberlei.de"
+                },
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Jonathan Wage",
+                    "email": "jonwage@gmail.com"
+                },
+                {
+                    "name": "Johannes Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                },
+                {
+                    "name": "Marco Pivetta",
+                    "email": "ocramius@gmail.com"
+                }
+            ],
+            "description": "Doctrine Reflection component",
+            "homepage": "https://www.doctrine-project.org/projects/reflection.html",
+            "keywords": [
+                "reflection"
+            ],
+            "time": "2018-06-14T14:45:07+00:00"
+        },
         {
             "name": "psr/cache",
             "version": "1.0.1",
@@ -601,16 +839,16 @@
         },
         {
             "name": "symfony/cache",
-            "version": "v4.0.9",
+            "version": "v4.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/cache.git",
-                "reference": "ff96ef34437ccc2c0737677c1bf14904a2b9482d"
+                "reference": "05ce0ddc8bc1ffe592105398fc2c725cb3080a38"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/cache/zipball/ff96ef34437ccc2c0737677c1bf14904a2b9482d",
-                "reference": "ff96ef34437ccc2c0737677c1bf14904a2b9482d",
+                "url": "https://api.github.com/repos/symfony/cache/zipball/05ce0ddc8bc1ffe592105398fc2c725cb3080a38",
+                "reference": "05ce0ddc8bc1ffe592105398fc2c725cb3080a38",
                 "shasum": ""
             },
             "require": {
@@ -635,7 +873,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0-dev"
+                    "dev-master": "4.1-dev"
                 }
             },
             "autoload": {
@@ -666,25 +904,26 @@
                 "caching",
                 "psr6"
             ],
-            "time": "2018-04-30T01:05:59+00:00"
+            "time": "2018-09-30T03:38:13+00:00"
         },
         {
             "name": "symfony/config",
-            "version": "v4.0.9",
+            "version": "v4.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "7c19370ab04e9ac05b74a504198e165f5ccf6dd8"
+                "reference": "b3d4d7b567d7a49e6dfafb6d4760abc921177c96"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/config/zipball/7c19370ab04e9ac05b74a504198e165f5ccf6dd8",
-                "reference": "7c19370ab04e9ac05b74a504198e165f5ccf6dd8",
+                "url": "https://api.github.com/repos/symfony/config/zipball/b3d4d7b567d7a49e6dfafb6d4760abc921177c96",
+                "reference": "b3d4d7b567d7a49e6dfafb6d4760abc921177c96",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.1.3",
-                "symfony/filesystem": "~3.4|~4.0"
+                "symfony/filesystem": "~3.4|~4.0",
+                "symfony/polyfill-ctype": "~1.8"
             },
             "conflict": {
                 "symfony/finder": "<3.4"
@@ -701,7 +940,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0-dev"
+                    "dev-master": "4.1-dev"
                 }
             },
             "autoload": {
@@ -728,20 +967,20 @@
             ],
             "description": "Symfony Config Component",
             "homepage": "https://symfony.com",
-            "time": "2018-03-19T22:35:49+00:00"
+            "time": "2018-09-08T13:24:10+00:00"
         },
         {
             "name": "symfony/debug",
-            "version": "v4.0.9",
+            "version": "v4.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "e1d57cdb357e5b10f5fdacbb0b86689c0a435e6e"
+                "reference": "e3f76ce6198f81994e019bb2b4e533e9de1b9b90"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/e1d57cdb357e5b10f5fdacbb0b86689c0a435e6e",
-                "reference": "e1d57cdb357e5b10f5fdacbb0b86689c0a435e6e",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/e3f76ce6198f81994e019bb2b4e533e9de1b9b90",
+                "reference": "e3f76ce6198f81994e019bb2b4e533e9de1b9b90",
                 "shasum": ""
             },
             "require": {
@@ -757,7 +996,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0-dev"
+                    "dev-master": "4.1-dev"
                 }
             },
             "autoload": {
@@ -784,20 +1023,20 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2018-04-30T16:59:37+00:00"
+            "time": "2018-10-02T16:36:10+00:00"
         },
         {
             "name": "symfony/dependency-injection",
-            "version": "v4.0.9",
+            "version": "v4.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dependency-injection.git",
-                "reference": "1f99622d8a63b160bfdd0ad7b2da56ee413cba64"
+                "reference": "f6b9d893ad28aefd8942dc0469c8397e2216fe30"
             },
             "dist": {
                 "type": "zip",
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-                    "homepage": "http://twig.sensiolabs.org/contributors",
+                    "homepage": "https://twig.symfony.com/contributors",
                     "role": "Contributors"
                 }
             ],
             "description": "Twig, the flexible, fast, and secure template language for PHP",
-            "homepage": "http://twig.sensiolabs.org",
+            "homepage": "https://twig.symfony.com",
             "keywords": [
                 "templating"
             ],
-            "time": "2018-04-02T09:24:19+00:00"
+            "time": "2018-07-13T07:18:09+00:00"
         },
         {
             "name": "webmozart/assert",