diff --git a/framework/db/QueryBuilder.php b/framework/db/QueryBuilder.php
index fd1b163aa90..74af4c549d9 100644
--- a/framework/db/QueryBuilder.php
+++ b/framework/db/QueryBuilder.php
@@ -475,7 +475,9 @@ public function batchInsert($table, $columns, $rows, &$params = [])
                 if (isset($columns[$i], $columnSchemas[$columns[$i]])) {
                     $value = $columnSchemas[$columns[$i]]->dbTypecast($value);
                 }
-                if (is_string($value)) {
+                if (is_array($value)) {
+                    $value = json_encode($value);
+                } elseif (is_string($value)) {
                     $value = $schema->quoteValue($value);
                 } elseif (is_float($value)) {
                     // ensure type cast always has . as decimal separator in all locales