diff --git a/src/Database/TenantDatabaseManagers/PermissionControlledMySQLDatabaseManager.php b/src/Database/TenantDatabaseManagers/PermissionControlledMySQLDatabaseManager.php
index 80dc6647..308d8786 100644
--- a/src/Database/TenantDatabaseManagers/PermissionControlledMySQLDatabaseManager.php
+++ b/src/Database/TenantDatabaseManagers/PermissionControlledMySQLDatabaseManager.php
@@ -41,7 +41,7 @@ class PermissionControlledMySQLDatabaseManager extends MySQLDatabaseManager impl
 
     protected function isVersion8(): bool
     {
-        $versionSelect = $this->database()->raw('select version()')->getValue($this->database()->getQueryGrammar());
+        $versionSelect = (string) $this->database()->raw('select version()')->getValue($this->database()->getQueryGrammar());
         $version = $this->database()->select($versionSelect)[0]->{'version()'};
 
         return version_compare($version, '8.0.0') >= 0;