diff --git a/src/Database/Adapter/Postgres.php b/src/Database/Adapter/Postgres.php
index 2cf4bef9c..8678afcaa 100644
--- a/src/Database/Adapter/Postgres.php
+++ b/src/Database/Adapter/Postgres.php
@@ -84,7 +84,7 @@ public function rollbackTransaction(): bool
         return $result;
     }
 
-    private function execute(\PDOStatement $stmt): bool
+    private function execute(mixed $stmt): bool
     {
         $pdo = $this->getPDO();