diff --git a/.travis.yml b/.travis.yml
index 1d57c4f..362950a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,10 +16,14 @@ matrix:
       env: SYMFONY_VERSION="3.4.*"
     - php: 7.3
       env: SYMFONY_VERSION="4.4.*"
+    - php: 7.3
+      env: SYMFONY_VERSION="5.0.*"
     - php: 7.4
       env: SYMFONY_VERSION="3.4.*"
     - php: 7.4
       env: SYMFONY_VERSION="4.4.*"
+    - php: 7.4
+      env: SYMFONY_VERSION="5.0.*"
 
 before_install:
     - composer self-update
diff --git a/Command/DumpCommand.php b/Command/DumpCommand.php
index dc69ef8..dbce072 100644
--- a/Command/DumpCommand.php
+++ b/Command/DumpCommand.php
@@ -31,5 +31,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
         $output->writeln('<info>We would have put the following in cron</info>');
         $output->write($content = $cron->format());
+
+        return 0;
     }
 }
diff --git a/Command/ReplaceCommand.php b/Command/ReplaceCommand.php
index 96ba9b7..88e5bab 100644
--- a/Command/ReplaceCommand.php
+++ b/Command/ReplaceCommand.php
@@ -33,6 +33,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
         } catch (\RuntimeException $e) {
             $output->writeln(sprintf('<comment>Cron cannot be updated - %s</comment>', $e->getMessage()));
         }
+
+        return 0;
     }
 
     private function getExportKey()
diff --git a/README.md b/README.md
index 09c62cb..5c5401c 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Build Status](https://travis-ci.org/mybuilder/cronos-bundle.svg?branch=master)](https://travis-ci.org/mybuilder/cronos-bundle)
 
-A bundle for Symfony 3/4 that allows you to use `@Cron` annotations to configure when cron should run your console commands.
+A bundle for Symfony 3/4/5 that allows you to use `@Cron` annotations to configure when cron should run your console commands.
 
 Uses the [Cronos](https://github.com/mybuilder/cronos) library to do the actual output and updating.
 
@@ -29,7 +29,7 @@ public function registerBundles(): array
 }
 ```
 
-Enable the bundle in the `config/bundles.php` for Symfony 4:
+Enable the bundle in the `config/bundles.php` for Symfony 4/5:
 
 ```php
 return [
@@ -39,7 +39,7 @@ return [
 
 ### Configure the bundle
 
-You can add the following to your `config.yml` (Symfony 3) / `packages/my_builder_cronos.yaml` (Symfony 4) to configure the package.
+You can add the following to your `config.yml` (Symfony 3) / `packages/my_builder_cronos.yaml` (Symfony 4/5) to configure the package.
 
 ```yaml
 my_builder_cronos:
diff --git a/composer.json b/composer.json
index 5815cc7..b79e974 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
     "name": "mybuilder/cronos-bundle",
-    "description": "Symfony 3/4 bundle which allows you to use @Cron annotations to configure cron to run your console commands.",
+    "description": "Symfony 3/4/5 bundle which allows you to use @Cron annotations to configure cron to run your console commands.",
     "keywords": ["cron", "cronos"],
     "minimum-stability": "stable",
     "license": "MIT",
@@ -17,10 +17,10 @@
     "require": {
         "mybuilder/cronos": "~2.0",
         "doctrine/annotations": "1.*",
-        "symfony/console": "~3.0||^4.0",
-        "symfony/framework-bundle": "~3.0||^4.0",
-        "symfony/yaml": "3.0||^4.0",
-        "symfony/property-access": "~3.0||^4.0",
+        "symfony/console": "~3.0||^4.0||^5.0",
+        "symfony/framework-bundle": "~3.0||^4.0||^5.0",
+        "symfony/yaml": "3.0||^4.0||^5.0",
+        "symfony/property-access": "~3.0||^4.0||^5.0",
         "php": ">=7.3"
     },
     "require-dev": {