diff --git a/recipe/magento2.php b/recipe/magento2.php
index ca1b19f2d..bc2e97f80 100644
--- a/recipe/magento2.php
+++ b/recipe/magento2.php
@@ -10,6 +10,8 @@
 use Deployer\Exception\RunException;
 use Deployer\Host\Host;
 
+use function Deployer\Support\array_is_list;
+
 const CONFIG_IMPORT_NEEDED_EXIT_CODE = 2;
 const DB_UPDATE_NEEDED_EXIT_CODE = 2;
 const MAINTENANCE_MODE_ACTIVE_OUTPUT_MSG = 'maintenance mode is active';
diff --git a/src/Support/helpers.php b/src/Support/helpers.php
index cdda3ff10..b6251f7bd 100644
--- a/src/Support/helpers.php
+++ b/src/Support/helpers.php
@@ -65,6 +65,18 @@ function array_merge_alternate(array $original, array $override)
     return $original;
 }
 
+/**
+ * Polyfill for the array_is_list function introduced in PHP 8.1.
+ *
+ * @param array $array The array to check.
+ * @return bool Returns true if the array is a list, false otherwise.
+ */
+function array_is_list(array $array): bool
+{
+    $keys = array_keys($array);
+    return $keys === array_keys($keys);
+}
+
 /**
  * Determines if the given string contains the given value.
  */