diff --git a/backend/video_api.php b/backend/video_api.php
index 4a48c6f..dfcafc7 100644
--- a/backend/video_api.php
+++ b/backend/video_api.php
@@ -171,7 +171,8 @@ class VeoVideoAPI {
                     $mimeType = $refImg['mime_type'] ?? 'image/jpeg';
                     $data = $this->resizeImageForVeo($data, $mimeType, $aspectRatio);
                     $instance['image'] = [
-                        'inlineData' => ['mimeType' => $mimeType, 'data' => $data]
+                        'bytesBase64Encoded' => $data,
+                        'mimeType' => $mimeType
                     ];
                     error_log("Added first frame for I2V generation (resized to match $aspectRatio)");
                 }
@@ -188,7 +189,8 @@ class VeoVideoAPI {
                     $lastMimeType = $lastImg['mime_type'] ?? 'image/jpeg';
                     $lastData = $this->resizeImageForVeo($lastData, $lastMimeType, $aspectRatio);
                     $instance['lastFrame'] = [
-                        'inlineData' => ['mimeType' => $lastMimeType, 'data' => $lastData]
+                        'bytesBase64Encoded' => $lastData,
+                        'mimeType' => $lastMimeType
                     ];
                     error_log("Added lastFrame to instance for video interpolation (8s duration)");
                 }