diff --git a/Scripts/Format/glTF_VRM_Material.cs b/Scripts/Format/glTF_VRM_Material.cs
index 532f5f4ae..ccc6d59fa 100644
--- a/Scripts/Format/glTF_VRM_Material.cs
+++ b/Scripts/Format/glTF_VRM_Material.cs
@@ -76,7 +76,12 @@ namespace VRM
 
         public static List<glTF_VRM_Material> Parse(string src)
         {
-            var json = UniJSON.JsonParser.Parse(src)["extensions"]["VRM"]["materialProperties"];
+            var json = JsonParser.Parse(src)["extensions"]["VRM"]["materialProperties"];
+            return Parse(json);
+        }
+
+        public static List<glTF_VRM_Material> Parse(JsonNode json)
+        {
             var materials = json.DeserializeList<glTF_VRM_Material>();
             var jsonItems = json.ArrayItems.ToArray();
             for (int i = 0; i < materials.Count; ++i)
diff --git a/UniGLTF b/UniGLTF
index fb2fa4f1b..3a3ddbbb2 160000
--- a/UniGLTF
+++ b/UniGLTF
@@ -1 +1 @@
-Subproject commit fb2fa4f1b6f2ed39f65f5235b14a10ab1f8db3df
+Subproject commit 3a3ddbbb20c27be665e8c3fbfe007ff95962be2d