diff --git a/public/install.php b/public/install.php
index 77fd763498..f1e9a34b3d 100644
--- a/public/install.php
+++ b/public/install.php
@@ -67,7 +67,7 @@ function boolIcon(bool $bool): string
 $dbCheck = false;
 
 if ($envExists) {
-    Dotenv\Dotenv::create($rootDir)->load();
+    Dotenv\Dotenv::createImmutable($rootDir)->load();
     $dbCheck = $installer->checkDatabaseConnection();
     $isInstalled = $installer->isInstalled();
 }