diff --git a/composer.json b/composer.json
index 6383fca9..1544681a 100644
--- a/composer.json
+++ b/composer.json
@@ -13,26 +13,35 @@
     "prefer-stable": true,
     "require": {
         "php": ">=8.1",
-        "doctrine/doctrine-bundle": "^2.10.0",
         "makinacorpus/query-builder": "^1.6.1",
+        "psr/log": "^3.0",
         "symfony/config": "^6.0|^7.0",
-        "symfony/console": "^6.0|^7.0",
-        "symfony/dependency-injection": "^6.0|^7.0",
         "symfony/filesystem": "^6.0|^7.0",
         "symfony/finder": "^6.0|^7.0",
         "symfony/options-resolver": "^6.0|^7.0",
-        "symfony/password-hasher": "^6.0|^7.0",
         "symfony/process": "^6.0|^7.0",
         "symfony/yaml": "^6.0|^7.0"
     },
     "require-dev": {
+        "doctrine/doctrine-bundle": "^2.10.0",
         "doctrine/orm": "^2.15|^3.0",
         "friendsofphp/php-cs-fixer": "^3.34",
         "phpstan/phpstan": "^1.10",
         "phpunit/phpunit": "^10.4",
+        "symfony/dependency-injection": "^6.0|^7.0",
         "symfony/framework-bundle": "^6.0|^7.0",
+        "symfony/password-hasher": "^6.0|^7.0",
         "symfony/validator": "^6.3|^7.0"
     },
+    "suggest": {
+        "doctrine/doctrine-bundle": "For autoconfiguration in Symfony project context",
+        "symfony/console": "In order to use the standalone CLI tool or Symfony console commands",
+        "symfony/password-hasher": "In order to use the password hash anonymizer"
+    },
+    "conflict": {
+        "symfony/console": "<6.0|>=8.0",
+        "symfony/password-hasher": "<6.0|>=8.0"
+    },
     "autoload": {
         "psr-4": {
             "MakinaCorpus\\DbToolsBundle\\" : "src/"
diff --git a/src/Anonymization/Anonymizer/Core/PasswordAnonymizer.php b/src/Anonymization/Anonymizer/Core/PasswordAnonymizer.php
index 8961b7ac..1a502973 100644
--- a/src/Anonymization/Anonymizer/Core/PasswordAnonymizer.php
+++ b/src/Anonymization/Anonymizer/Core/PasswordAnonymizer.php
@@ -6,6 +6,7 @@
 
 use MakinaCorpus\DbToolsBundle\Anonymization\Anonymizer\AbstractAnonymizer;
 use MakinaCorpus\DbToolsBundle\Attribute\AsAnonymizer;
+use MakinaCorpus\DbToolsBundle\Error\MissingDependencyException;
 use MakinaCorpus\QueryBuilder\Query\Update;
 use Symfony\Component\PasswordHasher\Hasher\PasswordHasherFactory;
 
@@ -22,6 +23,8 @@ class PasswordAnonymizer extends AbstractAnonymizer
     #[\Override]
     protected function validateOptions(): void
     {
+        MissingDependencyException::check('symfony/password-hasher', PasswordHasherFactory::class);
+
         $algorithm = $this->options->getString('algorithm', 'auto');
         $this->options->getString('password', 'password');
 
diff --git a/src/Error/MissingDependencyException.php b/src/Error/MissingDependencyException.php
new file mode 100644
index 00000000..305c5e47
--- /dev/null
+++ b/src/Error/MissingDependencyException.php
@@ -0,0 +1,32 @@
+<?php
+
+declare (strict_types=1);
+
+namespace MakinaCorpus\DbToolsBundle\Error;
+
+class MissingDependencyException extends \RuntimeException
+{
+    /**
+     * Create new missing dependency exception.
+     */
+    public static function create(string $package, ?string $className = null): self
+    {
+        if ($className) {
+            $message = \sprintf("'%s' dependency is missing in order to use '%s' class, please consider running 'composer require %s'", $package, $className, $package);
+        } else {
+            $message = \sprintf("'%s' dependency is missing, please consider running 'composer require %s'", $package, $package);
+        }
+
+        return new self($message);
+    }
+
+    /**
+     * Check class exists, raise missing dependency exception if not.
+     */
+    public static function check(string $package, string $className): void
+    {
+        if (!\class_exists($className)) {
+            throw self::create($package, $className);
+        }
+    }
+}