diff --git a/Assets/VRM10/Runtime/Format/SpringBone/Deserializer.g.cs b/Assets/VRM10/Runtime/Format/SpringBone/Deserializer.g.cs
index 0586970cf..3ebef6e81 100644
--- a/Assets/VRM10/Runtime/Format/SpringBone/Deserializer.g.cs
+++ b/Assets/VRM10/Runtime/Format/SpringBone/Deserializer.g.cs
@@ -73,6 +73,16 @@ public static Spring Deserialize_Springs_ITEM(JsonNode parsed)
     {
         var key = kv.Key.GetString();
 
+        if(key=="extensions"){
+            value.Extensions = new glTFExtensionImport(kv.Value);
+            continue;
+        }
+
+        if(key=="extras"){
+            value.Extras = new glTFExtensionImport(kv.Value);
+            continue;
+        }
+
         if(key=="name"){
             value.Name = kv.Value.GetString();
             continue;
@@ -150,11 +160,6 @@ public static SpringBoneJoint Deserialize_Joints_ITEM(JsonNode parsed)
             continue;
         }
 
-        if(key=="exclude"){
-            value.Exclude = kv.Value.GetBoolean();
-            continue;
-        }
-
     }
     return value;
 }
diff --git a/Assets/VRM10/Runtime/Format/SpringBone/Format.g.cs b/Assets/VRM10/Runtime/Format/SpringBone/Format.g.cs
index 8febc816d..17405bf0e 100644
--- a/Assets/VRM10/Runtime/Format/SpringBone/Format.g.cs
+++ b/Assets/VRM10/Runtime/Format/SpringBone/Format.g.cs
@@ -32,20 +32,23 @@ namespace UniGLTF.Extensions.VRMC_springBone
 
         // Air resistance. Deceleration force.
         public float? DragForce;
-
-        // When enabled, this joint will skip Spring processing.
-        public bool? Exclude;
     }
 
     public class Spring
     {
+        // Dictionary object with extension-specific objects.
+        public glTFExtension Extensions;
+
+        // Application-specific data.
+        public glTFExtension Extras;
+
         // Name of the Spring
         public string Name;
 
-        // Joints in this spring. Except for the first element, the parent of the element must be the previous element of the array
+        // Joints of the spring. Except for the first element, a previous joint of the array must be an ancestor of the joint.
         public List<SpringBoneJoint> Joints;
 
-        // Colliders that detect collision with nodes start from springRoot
+        // Colliders that detect collision with this spring.
         public int[] Colliders;
     }
 
diff --git a/Assets/VRM10/Runtime/Format/SpringBone/Serializer.g.cs b/Assets/VRM10/Runtime/Format/SpringBone/Serializer.g.cs
index 8a87d1aef..c7b9fa404 100644
--- a/Assets/VRM10/Runtime/Format/SpringBone/Serializer.g.cs
+++ b/Assets/VRM10/Runtime/Format/SpringBone/Serializer.g.cs
@@ -68,6 +68,16 @@ public static void Serialize_Springs_ITEM(JsonFormatter f, Spring value)
     f.BeginMap();
 
 
+    if(value.Extensions!=null){
+        f.Key("extensions");                
+        value.Extensions.Serialize(f);
+    }
+
+    if(value.Extras!=null){
+        f.Key("extras");                
+        value.Extras.Serialize(f);
+    }
+
     if(!string.IsNullOrEmpty(value.Name)){
         f.Key("name");                
         f.Value(value.Name);
@@ -143,11 +153,6 @@ public static void Serialize_Joints_ITEM(JsonFormatter f, SpringBoneJoint value)
         f.Value(value.DragForce.GetValueOrDefault());
     }
 
-    if(value.Exclude.HasValue){
-        f.Key("exclude");                
-        f.Value(value.Exclude.GetValueOrDefault());
-    }
-
     f.EndMap();
 }
 
diff --git a/Assets/VRM10/Runtime/Format/Vrm/Format.g.cs b/Assets/VRM10/Runtime/Format/Vrm/Format.g.cs
index d2719fe49..039d50570 100644
--- a/Assets/VRM10/Runtime/Format/Vrm/Format.g.cs
+++ b/Assets/VRM10/Runtime/Format/Vrm/Format.g.cs
@@ -305,7 +305,7 @@ namespace UniGLTF.Extensions.VRMC_vrm
     public enum LookAtType
     {
         bone,
-        blendShape,
+        expression,
 
     }
 
@@ -342,23 +342,23 @@ namespace UniGLTF.Extensions.VRMC_vrm
     public enum ExpressionPreset
     {
         custom,
+        happy,
+        angry,
+        sad,
+        relaxed,
+        surprised,
         aa,
         ih,
         ou,
         ee,
         oh,
         blink,
-        happy,
-        angry,
-        sad,
-        relaxed,
+        blinkLeft,
+        blinkRight,
         lookUp,
-        surprised,
         lookDown,
         lookLeft,
         lookRight,
-        blinkLeft,
-        blinkRight,
         neutral,
 
     }