diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2626e2809f..a4474ef51a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,12 +16,16 @@ jobs:
             matrix:
                 php-version: [ '7.4', '8.0', '8.1' ]
                 db-type: [ sqlite, mysql, pgsql, agnostic ]
-                symfony-version: [ '4-min', '4-max', '5-min', '5-max' ]
+                symfony-version: [ '4-min', '4-max', '5-min', '5-max', '6-min', '6-max' ]
                 exclude:
                   - symfony-version: '4-min'
                     php-version: '8.0'
                   - symfony-version: '4-min'
                     php-version: '8.1'
+                  - symfony-version: '6-min'
+                    php-version: '7.4'
+                  - symfony-version: '6-max'
+                    php-version: '7.4'
         steps:
             - name: Install PostgreSQL latest
               if: matrix.db-type == 'pgsql' && matrix.php-version != '7.3'
diff --git a/composer.json b/composer.json
index 3388195b86..c09a25eaeb 100644
--- a/composer.json
+++ b/composer.json
@@ -18,13 +18,13 @@
     "require": {
         "php": ">=7.4",
         "psr/log": "^1.0||^2.0||^3.0",
-        "symfony/yaml": "^3.4.0||^4.0.0||^5.0.0",
-        "symfony/config": "^3.4.0||^4.0.0||^5.0.0",
-        "symfony/console": "^3.4.0||^4.0.0||^5.0.0",
-        "symfony/filesystem": "^3.4.0||^4.0.0||^5.0.0",
-        "symfony/finder": "^3.4.0||^4.0.0||^5.0.0",
-        "symfony/translation": "^3.4.0||^4.0.0||^5.0.0",
-        "symfony/validator": "^3.4.0||^4.0.0||^5.0.0"
+        "symfony/yaml": "^3.4.0||^4.0.0||^5.0.0||^6.0.0",
+        "symfony/config": "^3.4.0||^4.0.0||^5.0.0||^6.0.0",
+        "symfony/console": "^3.4.0||^4.0.0||^5.0.0||^6.0.0",
+        "symfony/filesystem": "^3.4.0||^4.0.0||^5.0.0||^6.0.0",
+        "symfony/finder": "^3.4.0||^4.0.0||^5.0.0||^6.0.0",
+        "symfony/translation": "^3.4.0||^4.0.0||^5.0.0||^6.0.0",
+        "symfony/validator": "^3.4.0||^4.0.0||^5.0.0||^6.0.0"
     },
     "require-dev": {
         "ext-pdo": "*",
diff --git a/src/Propel/Generator/Command/Console/Input/ArrayInput.php b/src/Propel/Generator/Command/Console/Input/ArrayInput.php
index 757fac0ba2..4c07e0d11e 100644
--- a/src/Propel/Generator/Command/Console/Input/ArrayInput.php
+++ b/src/Propel/Generator/Command/Console/Input/ArrayInput.php
@@ -52,7 +52,7 @@ public function __construct(array $parameters, ?InputDefinition $definition = nu
     /**
      * @inheritDoc
      */
-    public function getFirstArgument()
+    public function getFirstArgument(): ?string
     {
         foreach ($this->parameters as $key => $value) {
             if ($key && $key[0] === '-') {
@@ -68,7 +68,7 @@ public function getFirstArgument()
     /**
      * @inheritDoc
      */
-    public function hasParameterOption($values, $onlyParams = false)
+    public function hasParameterOption($values, $onlyParams = false): bool
     {
         $values = (array)$values;
 
diff --git a/tests/composer/composer-symfony3-max.json b/tests/composer/composer-symfony3-max.json
index 58c329c863..439ff2b60c 100644
--- a/tests/composer/composer-symfony3-max.json
+++ b/tests/composer/composer-symfony3-max.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.4",
         "symfony/yaml": "^3.4.0",
         "symfony/config": "^3.4.0",
         "symfony/console": "^3.4.0",
@@ -24,7 +24,6 @@
         "symfony/finder": "^3.4.0",
         "symfony/translation": "^3.4.0",
         "symfony/validator": "^3.4.0",
-        "symfony/polyfill-php73": "^1.8",
         "psr/log": "^1.0"
     },
     "require-dev": {
@@ -32,7 +31,7 @@
         "ext-json": "*",
         "monolog/monolog": "^1.3",
         "phpstan/phpstan": "^0.12.4",
-        "phpunit/phpunit": "^8.0.0||^9.0.0",
+        "phpunit/phpunit": "^9.5.0",
         "spryker/code-sniffer": "^0.15.6",
         "psalm/phar": "^4.1.0",
         "mikey179/vfsstream": "^1.6"
diff --git a/tests/composer/composer-symfony3-min.json b/tests/composer/composer-symfony3-min.json
index e3dae5ec62..f0b8132bf9 100644
--- a/tests/composer/composer-symfony3-min.json
+++ b/tests/composer/composer-symfony3-min.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.4",
         "symfony/yaml": "~3.4.0",
         "symfony/config": "~3.4.0",
         "symfony/console": "~3.4.0",
@@ -24,7 +24,6 @@
         "symfony/finder": "~3.4.0",
         "symfony/translation": "~3.4.0",
         "symfony/validator": "~3.4.0",
-        "symfony/polyfill-php73": "^1.8",
         "psr/log": "^1.0"
     },
     "require-dev": {
@@ -32,7 +31,7 @@
         "ext-json": "*",
         "monolog/monolog": "^1.3",
         "phpstan/phpstan": "^0.12.4",
-        "phpunit/phpunit": "^8.0.0||^9.0.0",
+        "phpunit/phpunit": "^9.5.0",
         "spryker/code-sniffer": "^0.15.6",
         "psalm/phar": "^4.1.0",
         "mikey179/vfsstream": "^1.6"
diff --git a/tests/composer/composer-symfony4-max.json b/tests/composer/composer-symfony4-max.json
index 70decfe11d..39c6c004f5 100644
--- a/tests/composer/composer-symfony4-max.json
+++ b/tests/composer/composer-symfony4-max.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.4",
         "symfony/yaml": "^4.0.0",
         "symfony/config": "^4.0.0",
         "symfony/console": "^4.0.0",
@@ -24,7 +24,6 @@
         "symfony/finder": "^4.0.0",
         "symfony/translation": "^4.0.0",
         "symfony/validator": "^4.0.0",
-        "symfony/polyfill-php73": "^1.8",
         "psr/log": "^1.0"
     },
     "require-dev": {
@@ -32,7 +31,7 @@
         "ext-json": "*",
         "monolog/monolog": "^1.3",
         "phpstan/phpstan": "^0.12.4",
-        "phpunit/phpunit": "^8.0.0||^9.0.0",
+        "phpunit/phpunit": "^9.5.0",
         "spryker/code-sniffer": "^0.15.6",
         "psalm/phar": "^4.1.0",
         "mikey179/vfsstream": "^1.6"
diff --git a/tests/composer/composer-symfony4-min.json b/tests/composer/composer-symfony4-min.json
index fbed7537f6..79c36e43db 100644
--- a/tests/composer/composer-symfony4-min.json
+++ b/tests/composer/composer-symfony4-min.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.4",
         "symfony/yaml": "~4.0.0",
         "symfony/config": "~4.0.0",
         "symfony/console": "~4.0.0",
@@ -24,7 +24,6 @@
         "symfony/finder": "~4.0.0",
         "symfony/translation": "~4.0.0",
         "symfony/validator": "~4.0.0",
-        "symfony/polyfill-php73": "^1.8",
         "psr/log": "^1.0"
     },
     "require-dev": {
@@ -32,7 +31,7 @@
         "ext-json": "*",
         "monolog/monolog": "^1.3",
         "phpstan/phpstan": "^0.12.4",
-        "phpunit/phpunit": "^8.0.0||^9.0.0",
+        "phpunit/phpunit": "^9.5.0",
         "spryker/code-sniffer": "^0.15.6",
         "psalm/phar": "^4.1.0",
         "mikey179/vfsstream": "^1.6"
diff --git a/tests/composer/composer-symfony5-max.json b/tests/composer/composer-symfony5-max.json
index 8a3caa8dac..2b7247e209 100644
--- a/tests/composer/composer-symfony5-max.json
+++ b/tests/composer/composer-symfony5-max.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.4",
         "symfony/yaml": "^5.0.0",
         "symfony/config": "^5.0.0",
         "symfony/console": "^5.0.0",
@@ -24,7 +24,6 @@
         "symfony/finder": "^5.0.0",
         "symfony/translation": "^5.0.0",
         "symfony/validator": "^5.0.0",
-        "symfony/polyfill-php73": "^1.8",
         "psr/log": "^1.0"
     },
     "require-dev": {
@@ -32,7 +31,7 @@
         "ext-json": "*",
         "monolog/monolog": "^1.3",
         "phpstan/phpstan": "^0.12.4",
-        "phpunit/phpunit": "^8.0.0||^9.0.0",
+        "phpunit/phpunit": "^9.5.0",
         "spryker/code-sniffer": "^0.15.6",
         "psalm/phar": "^4.1.0",
         "mikey179/vfsstream": "^1.6"
diff --git a/tests/composer/composer-symfony5-min.json b/tests/composer/composer-symfony5-min.json
index 501c282682..a9f499d551 100644
--- a/tests/composer/composer-symfony5-min.json
+++ b/tests/composer/composer-symfony5-min.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.4",
         "symfony/yaml": "~5.0.0",
         "symfony/config": "~5.0.0",
         "symfony/console": "~5.0.0",
@@ -24,7 +24,6 @@
         "symfony/finder": "~5.0.0",
         "symfony/translation": "~5.0.0",
         "symfony/validator": "~5.0.0",
-        "symfony/polyfill-php73": "^1.8",
         "psr/log": "^1.0"
     },
     "require-dev": {
@@ -32,7 +31,7 @@
         "ext-json": "*",
         "monolog/monolog": "^1.3",
         "phpstan/phpstan": "^0.12.4",
-        "phpunit/phpunit": "^8.0.0||^9.0.0",
+        "phpunit/phpunit": "^9.5.0",
         "spryker/code-sniffer": "^0.15.6",
         "psalm/phar": "^4.1.0",
         "mikey179/vfsstream": "^1.6"
diff --git a/tests/composer/composer-php8.json b/tests/composer/composer-symfony6-max.json
similarity index 68%
rename from tests/composer/composer-php8.json
rename to tests/composer/composer-symfony6-max.json
index 44e049bc46..19ce7c8e5e 100644
--- a/tests/composer/composer-php8.json
+++ b/tests/composer/composer-symfony6-max.json
@@ -2,8 +2,6 @@
     "name": "propel/propel",
     "type": "library",
     "description": "Propel2 is an open-source Object-Relational Mapping (ORM) for PHP 5.5 and up.",
-    "minimum-stability": "dev",
-    "prefer-stable": true,
     "keywords": [
         "ORM",
         "persistence",
@@ -18,20 +16,24 @@
         }
     ],
     "require": {
-        "php": ">=7.2",
-        "symfony/yaml": "^5.0.0",
-        "symfony/config": "^5.0.0",
-        "symfony/console": "^5.0.0",
-        "symfony/filesystem": "^5.0.0",
-        "symfony/finder": "^5.0.0",
-        "symfony/translation": "^5.0.0",
-        "symfony/validator": "^5.0.0",
-        "symfony/polyfill-php73": "^1.8",
+        "php": ">=8.0",
+        "symfony/yaml": "^6.0.0",
+        "symfony/config": "^6.0.0",
+        "symfony/console": "^6.0.0",
+        "symfony/filesystem": "^6.0.0",
+        "symfony/finder": "^6.0.0",
+        "symfony/translation": "^6.0.0",
+        "symfony/validator": "^6.0.0",
         "psr/log": "^1.0"
     },
     "require-dev": {
+        "ext-pdo": "*",
+        "ext-json": "*",
         "monolog/monolog": "^1.3",
-        "phpunit/phpunit": "9.4.2",
+        "phpstan/phpstan": "^0.12.4",
+        "phpunit/phpunit": "^9.5.0",
+        "spryker/code-sniffer": "^0.15.6",
+        "psalm/phar": "^4.1.0",
         "mikey179/vfsstream": "^1.6"
     },
     "suggest": {
diff --git a/tests/composer/composer-symfony6-min.json b/tests/composer/composer-symfony6-min.json
new file mode 100644
index 0000000000..eb49e161c0
--- /dev/null
+++ b/tests/composer/composer-symfony6-min.json
@@ -0,0 +1,60 @@
+{
+    "name": "propel/propel",
+    "type": "library",
+    "description": "Propel2 is an open-source Object-Relational Mapping (ORM) for PHP 5.5 and up.",
+    "keywords": [
+        "ORM",
+        "persistence",
+        "Active Record"
+    ],
+    "homepage": "http://www.propelorm.org/",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "William Durand",
+            "email": "william.durand1@gmail.com"
+        }
+    ],
+    "require": {
+        "php": ">=8.0",
+        "symfony/yaml": "~6.0.0",
+        "symfony/config": "~6.0.0",
+        "symfony/console": "~6.0.0",
+        "symfony/filesystem": "~6.0.0",
+        "symfony/finder": "~6.0.0",
+        "symfony/translation": "~6.0.0",
+        "symfony/validator": "~6.0.0",
+        "psr/log": "^1.0"
+    },
+    "require-dev": {
+        "ext-pdo": "*",
+        "ext-json": "*",
+        "monolog/monolog": "^1.3",
+        "phpstan/phpstan": "^0.12.4",
+        "phpunit/phpunit": "^9.5.0",
+        "spryker/code-sniffer": "^0.15.6",
+        "psalm/phar": "^4.1.0",
+        "mikey179/vfsstream": "^1.6"
+    },
+    "suggest": {
+        "monolog/monolog": "The recommended logging library to use with Propel."
+    },
+    "autoload": {
+        "psr-4": {
+            "Propel\\": "src/Propel/"
+        }
+    },
+    "bin": [
+        "bin/propel"
+    ],
+    "scripts": {
+        "stan": [
+            "vendor/bin/phpstan analyze -l 1 -c tests/phpstan.neon src/"
+        ]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.0-dev"
+        }
+    }
+}