diff --git a/Scripts/Format/Editor/vrmAssetPostprocessor.cs b/Scripts/Format/Editor/vrmAssetPostprocessor.cs
index 6f4e07eea..6eb821a50 100644
--- a/Scripts/Format/Editor/vrmAssetPostprocessor.cs
+++ b/Scripts/Format/Editor/vrmAssetPostprocessor.cs
@@ -36,7 +36,7 @@ namespace VRM
                                 //Directory.CreateDirectory(folder);
                             }
 
-                            var textureName = string.IsNullOrEmpty(image.extra.name) ? string.Format("buffer#{0:00}", i) : image.extra.name;
+                            var textureName = !string.IsNullOrEmpty(image.name) ? image.name: string.Format("buffer#{0:00}", i);
                             var png = Path.Combine(folder, textureName + ".png");
                             var byteSegment = context.GLTF.GetViewBytes(image.bufferView);
                             File.WriteAllBytes(png, byteSegment.ToArray());
diff --git a/UniGLTF b/UniGLTF
index aa21a1fdc..b3e5b194b 160000
--- a/UniGLTF
+++ b/UniGLTF
@@ -1 +1 @@
-Subproject commit aa21a1fdc8fd87a6226cde3ce2e95487a52ccb42
+Subproject commit b3e5b194b26a79c0606f92c0565f82ceb5a81b71