diff --git a/src/Document.php b/src/Document.php
index cb56cd7..e6c209d 100644
--- a/src/Document.php
+++ b/src/Document.php
@@ -19,7 +19,7 @@ class Document
      */
     public static function insert(string $tableName, array|object $document, ?PDO $pdo = null): void
     {
-        Custom::nonQuery(Query::insert($tableName), Parameters::json('@data', $document), $pdo);
+        Custom::nonQuery(Query::insert($tableName), Parameters::json(':data', $document), $pdo);
     }
 
     /**
@@ -32,7 +32,7 @@ class Document
      */
     public static function save(string $tableName, array|object $document, ?PDO $pdo = null): void
     {
-        Custom::nonQuery(Query::save($tableName), Parameters::json('@data', $document), $pdo);
+        Custom::nonQuery(Query::save($tableName), Parameters::json(':data', $document), $pdo);
     }
 
     /**
@@ -47,6 +47,6 @@ class Document
     public static function update(string $tableName, mixed $docId, array|object $document, ?PDO $pdo = null): void
     {
         Custom::nonQuery(Query::update($tableName),
-            array_merge(Parameters::id($docId), Parameters::json('@data', $document)), $pdo);
+            array_merge(Parameters::id($docId), Parameters::json(':data', $document)), $pdo);
     }
 }