diff --git a/.travis.yml b/.travis.yml
index 39d6459..5b31c9c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,6 +22,8 @@ matrix:
               - SYMFONY_VERSION='~4.3.0'
         - php: '7.2'
           env: SYMFONY_VERSION='~4.3.0'
+        - php: '7.2'
+          env: SYMFONY_VERSION='^5.0'
     allow_failures:
         - php: nightly
 
diff --git a/composer.json b/composer.json
index 7a4329d..49d6cff 100644
--- a/composer.json
+++ b/composer.json
@@ -19,12 +19,13 @@
     "require": {
         "php": "^7.1",
         "psy/psysh": "^0.8 || ^0.9",
-        "symfony/expression-language": "^4.3",
-        "symfony/framework-bundle": "^4.3"
+        "symfony/debug": "^4.3|^4.4",
+        "symfony/expression-language": "^4.3|^5.0",
+        "symfony/framework-bundle": "^4.3|^5.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.5",
-        "symfony/symfony": "^4.3"
+        "symfony/symfony": "^4.3|^5.0"
     },
 
     "autoload": {
diff --git a/src/Command/PsyshCommand.php b/src/Command/PsyshCommand.php
index ca1b19f..b58d9b0 100644
--- a/src/Command/PsyshCommand.php
+++ b/src/Command/PsyshCommand.php
@@ -51,6 +51,6 @@ protected function configure()
      */
     protected function execute(InputInterface $input, OutputInterface $output)
     {
-        $this->shell->run();
+        return $this->shell->run();
     }
 }
diff --git a/tests/Command/PsyshCommandUnitTest.php b/tests/Command/PsyshCommandUnitTest.php
index b9f718d..34e401e 100644
--- a/tests/Command/PsyshCommandUnitTest.php
+++ b/tests/Command/PsyshCommandUnitTest.php
@@ -43,7 +43,7 @@ public function testConfiguration()
     public function testExecute()
     {
         $shellProphecy = $this->prophesize(Shell::class);
-        $shellProphecy->run()->shouldBeCalled();
+        $shellProphecy->run()->shouldBeCalled()->willReturn(1);
         /* @var Shell $shell */
         $shell = $shellProphecy->reveal();