diff --git a/Assets/VRM10/Runtime/Format/SpringBone/Format.g.cs b/Assets/VRM10/Runtime/Format/SpringBone/Format.g.cs
index 83442be36..122860d74 100644
--- a/Assets/VRM10/Runtime/Format/SpringBone/Format.g.cs
+++ b/Assets/VRM10/Runtime/Format/SpringBone/Format.g.cs
@@ -30,10 +30,10 @@ namespace UniGLTF.Extensions.VRMC_springBone
     public class ColliderShape
     {
         // Dictionary object with extension-specific objects.
-        public glTFExtension Extensions;
+        public object Extensions;
 
         // Application-specific data.
-        public glTFExtension Extras;
+        public object Extras;
 
         public ColliderShapeSphere Sphere;
 
@@ -43,10 +43,10 @@ namespace UniGLTF.Extensions.VRMC_springBone
     public class Collider
     {
         // Dictionary object with extension-specific objects.
-        public glTFExtension Extensions;
+        public object Extensions;
 
         // Application-specific data.
-        public glTFExtension Extras;
+        public object Extras;
 
         // The node index.
         public int? Node;
@@ -57,10 +57,10 @@ namespace UniGLTF.Extensions.VRMC_springBone
     public class ColliderGroup
     {
         // Dictionary object with extension-specific objects.
-        public glTFExtension Extensions;
+        public object Extensions;
 
         // Application-specific data.
-        public glTFExtension Extras;
+        public object Extras;
 
         public List<Collider> Colliders;
     }
diff --git a/Assets/VRM10/Runtime/Format/SpringBone/Serializer.g.cs b/Assets/VRM10/Runtime/Format/SpringBone/Serializer.g.cs
index 9f03bc2c3..ef63c1cd2 100644
--- a/Assets/VRM10/Runtime/Format/SpringBone/Serializer.g.cs
+++ b/Assets/VRM10/Runtime/Format/SpringBone/Serializer.g.cs
@@ -75,12 +75,12 @@ public static void Serialize_ColliderGroups_ITEM(JsonFormatter f, ColliderGroup
 
     if(value.Extensions!=null){
         f.Key("extensions");                
-        value.Extensions.Serialize(f);
+        (value.Extensions as glTFExtension).Serialize(f);
     }
 
     if(value.Extras!=null){
         f.Key("extras");                
-        value.Extras.Serialize(f);
+        (value.Extras as glTFExtension).Serialize(f);
     }
 
     if(value.Colliders!=null&&value.Colliders.Count()>=0){
@@ -110,12 +110,12 @@ public static void __colliderGroups_ITEM_Serialize_Colliders_ITEM(JsonFormatter
 
     if(value.Extensions!=null){
         f.Key("extensions");                
-        value.Extensions.Serialize(f);
+        (value.Extensions as glTFExtension).Serialize(f);
     }
 
     if(value.Extras!=null){
         f.Key("extras");                
-        value.Extras.Serialize(f);
+        (value.Extras as glTFExtension).Serialize(f);
     }
 
     if(value.Node.HasValue){
@@ -138,12 +138,12 @@ public static void __colliderGroups_ITEM__colliders_ITEM_Serialize_Shape(JsonFor
 
     if(value.Extensions!=null){
         f.Key("extensions");                
-        value.Extensions.Serialize(f);
+        (value.Extensions as glTFExtension).Serialize(f);
     }
 
     if(value.Extras!=null){
         f.Key("extras");                
-        value.Extras.Serialize(f);
+        (value.Extras as glTFExtension).Serialize(f);
     }
 
     if(value.Sphere!=null){
diff --git a/Assets/VRM10/Runtime/Format/Vrm/Format.g.cs b/Assets/VRM10/Runtime/Format/Vrm/Format.g.cs
index f4f3f5437..22167bc20 100644
--- a/Assets/VRM10/Runtime/Format/Vrm/Format.g.cs
+++ b/Assets/VRM10/Runtime/Format/Vrm/Format.g.cs
@@ -65,7 +65,6 @@ namespace UniGLTF.Extensions.VRMC_vrm
         public int? ThumbnailImage;
 
         // A person who can perform with this avatars
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public AvatarPermissionType AvatarPermission;
 
         // A flag that permits to use this avatar in excessively violent contents
@@ -75,21 +74,18 @@ namespace UniGLTF.Extensions.VRMC_vrm
         public bool? AllowExcessivelySexualUsage;
 
         // An option that permits to use this avatar in commercial products
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public CommercialUsageType CommercialUsage;
 
         // A flag that permits to use this avatar in political or religious contents
         public bool? AllowPoliticalOrReligiousUsage;
 
         // An option that forces or abandons to display the credit of this avatar
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public CreditNotationType CreditNotation;
 
         // A flag that permits to redistribute this avatar
         public bool? AllowRedistribution;
 
         // An option that controls the condition to modify this avatar
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public ModificationType Modification;
 
         // Describe the URL links of other license
@@ -291,7 +287,6 @@ namespace UniGLTF.Extensions.VRMC_vrm
         public int? Node;
 
         // How the camera interprets the mesh.
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public FirstPersonType Type;
     }
 
@@ -322,7 +317,6 @@ namespace UniGLTF.Extensions.VRMC_vrm
         // The origin of LookAt. Position offset from the head bone
         public float[] OffsetFromHeadBone;
 
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public LookAtType Type;
 
         // Horizontal inward movement. The left eye moves right. The right eye moves left.
@@ -401,7 +395,6 @@ namespace UniGLTF.Extensions.VRMC_vrm
         // target material
         public int? Material;
 
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public MaterialColorType Type;
 
         // target color
@@ -446,7 +439,6 @@ namespace UniGLTF.Extensions.VRMC_vrm
         public string Name;
 
         // Functions of Expression
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public ExpressionPreset Preset;
 
         // Specify a morph target
@@ -462,15 +454,12 @@ namespace UniGLTF.Extensions.VRMC_vrm
         public bool? IsBinary;
 
         // Override values of Blink expressions when this Expression is enabled
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public ExpressionOverrideType OverrideBlink;
 
         // Override values of LookAt expressions when this Expression is enabled
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public ExpressionOverrideType OverrideLookAt;
 
         // Override values of Mouth expressions when this Expression is enabled
-        [JsonSchema(EnumSerializationType = EnumSerializationType.AsString)]
         public ExpressionOverrideType OverrideMouth;
     }