diff --git a/config/application.php b/config/application.php
index 99c8ba2bf3..702f6e53da 100644
--- a/config/application.php
+++ b/config/application.php
@@ -11,6 +11,9 @@
 use Roots\WPConfig\Config;
 use function Env\env;
 
+// USE_ENV_ARRAY + CONVERT_* + STRIP_QUOTES
+Env\Env::$options = 31;
+
 /**
  * Directory containing all of the site's files
  *
@@ -34,7 +37,7 @@
         ? ['.env', '.env.local']
         : ['.env'];
 
-    $dotenv = Dotenv\Dotenv::createUnsafeImmutable($root_dir, $env_files, false);
+    $dotenv = Dotenv\Dotenv::createImmutable($root_dir, $env_files, false);
 
     $dotenv->load();