diff --git a/composer.json b/composer.json
index 6266a6e..8adc462 100644
--- a/composer.json
+++ b/composer.json
@@ -13,6 +13,7 @@
         "php": "^8.4",
         "php-di/php-di": "dev-master",
         "ext-json": "*",
+        "ext-pdo": "*",
         "mcnd/lean": "dev-master"
     },
     "repositories": [
diff --git a/src/Attribute/ContextField.php b/src/Attribute/ContextField.php
index 75481f3..e9e4f37 100644
--- a/src/Attribute/ContextField.php
+++ b/src/Attribute/ContextField.php
@@ -18,7 +18,7 @@ class ContextField
         public ?int $minValue = null,
         public ?int $maxValue = null,
         public ?string $regexFormat = null,
-        public ?string $example = null,
+        public mixed $example = null,
         public mixed $default = null,
         public bool $hidden = false,
     ) {}