diff --git a/Assets/VRM/UniGLTF/Editor/Tests/MaterialTests.cs b/Assets/VRM/UniGLTF/Editor/Tests/MaterialTests.cs
index c6f2e49c3..d8d520c6a 100644
--- a/Assets/VRM/UniGLTF/Editor/Tests/MaterialTests.cs
+++ b/Assets/VRM/UniGLTF/Editor/Tests/MaterialTests.cs
@@ -217,6 +217,7 @@ namespace UniGLTF
         {
             var material = new Material(Shader.Find("Standard"));
             material.SetColor("_EmissionColor", new Color(0, 1, 2, 1));
+            material.EnableKeyword("_EMISSION");
             var materialExporter = new MaterialExporter();
             var textureExportManager = new TextureExportManager(new Texture[] { });
             var gltfMaterial = materialExporter.ExportMaterial(material, textureExportManager);
diff --git a/Assets/VRM/UniVRM/Scripts/Format/VRMExportSettings.cs b/Assets/VRM/UniVRM/Scripts/Format/VRMExportSettings.cs
index 7f1b56db9..64a040a05 100644
--- a/Assets/VRM/UniVRM/Scripts/Format/VRMExportSettings.cs
+++ b/Assets/VRM/UniVRM/Scripts/Format/VRMExportSettings.cs
@@ -141,14 +141,19 @@ namespace VRM
 
                 foreach (var src in go.transform.Traverse().SelectMany(x => x.GetComponents<VRMSpringBone>()))
                 {
-                    // Copy VRMSprngBone
+                    // Copy VRMSpringBone
                     var dst = dstSecondary.gameObject.AddComponent<VRMSpringBone>();
                     dst.m_comment = src.m_comment;
                     dst.m_stiffnessForce = src.m_stiffnessForce;
                     dst.m_gravityPower = src.m_gravityPower;
                     dst.m_gravityDir = src.m_gravityDir;
                     dst.m_dragForce = src.m_dragForce;
+                    if (src.m_center != null)
+                    {
+                        dst.m_center = map[src.m_center];
+                    }
                     dst.RootBones = src.RootBones.Select(x => map[x]).ToList();
+                    dst.m_hitRadius = src.m_hitRadius;
                     if (src.ColliderGroups != null)
                     {
                         dst.ColliderGroups = src.ColliderGroups.Select(x => map[x.transform].GetComponent<VRMSpringBoneColliderGroup>()).ToArray();
diff --git a/README.ja.md b/README.ja.md
index bdeee56a4..9d70b35b9 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -6,12 +6,12 @@
 
 * [MIT License](./LICENSE.txt)
 
-## [VRM](https://dwango.github.io/vrm/)
+## [VRM](https://vrm.dev/)
 
 「VRM」はVRアプリケーション向けの人型3Dアバター（3Dモデル）データを扱うためのファイルフォーマットです。
 glTF2.0をベースとしており、誰でも自由に利用することができます。
 
-## [UniVRM](https://github.com/dwango/UniVRM)
+## [UniVRM](https://github.com/vrm-c/UniVRM)
 
 「UniVRM」は VRM の Unity 実装で、VRMモデルの作成・インポート・エクスポートができます。  
 
@@ -19,16 +19,16 @@ glTF2.0をベースとしており、誰でも自由に利用することがで
 
 ## Download
 
-1. 本リポジトリの[リリースページ](https://github.com/dwango/UniVRM/releases)へ移動してください。
+1. 本リポジトリの[リリースページ](https://github.com/vrm-c/UniVRM/releases)へ移動してください。
 1. 最新の``UniVRM-0.xx.unitypackage``をダウンロードしてください。
 1. ``UniVRM-0.xx.unitypackage``をUnityのプロジェクトにインポートしてください。
-    1. [UniVRMのインストール](https://dwango.github.io/vrm/univrm/univrm_install/)も参照してください。
+    1. [UniVRMのインストール](https://vrm.dev/univrm/univrm_install/)も参照してください。
     
 ## Script Samples
 
-* [UniVRMTest(テストとサンプル)](https://github.com/dwango/UniVRMTest)
+* [UniVRMTest(テストとサンプル)](https://github.com/vrm-c/UniVRMTest)
 
 ## Documents
 
-* https://dwango.github.io/vrm/
-* https://github.com/dwango/UniVRM/wiki
+* https://vrm.dev/
+* https://github.com/vrm-c/UniVRM/wiki
diff --git a/README.md b/README.md
index 80bf6312e..7bd6f77c3 100644
--- a/README.md
+++ b/README.md
@@ -6,12 +6,12 @@
 
 * [MIT License](./LICENSE.txt)
 
-## [VRM](https://dwango.github.io/vrm/)
+## [VRM](https://vrm.dev/)
 
 "VRM" is a file format for using 3d humanoid avatars (and models) in VR applications.  
 VRM is based on glTF2.0. If you comply with the MIT license, you are free to use it.  
 
-## [UniVRM](https://github.com/dwango/UniVRM)
+## [UniVRM](https://github.com/vrm-c/UniVRM)
 
 "UniVRM" is a Unity implementation of VRM. It can create, import and export VRM models.
 
@@ -19,17 +19,17 @@ VRM is based on glTF2.0. If you comply with the MIT license, you are free to use
 
 ## Download
 
-1. Go to the [releases page](https://github.com/dwango/UniVRM/releases)
+1. Go to the [releases page](https://github.com/vrm-c/UniVRM/releases)
 1. Download the latest ``UniVRM-0.xx.unitypackage``
 1. Import the downloaded package into the Unity project.
-    1. See also [UniVRM installation](https://dwango.github.io/en/vrm/univrm/univrm_install/)
+    1. See also [UniVRM installation](https://vrm.dev/en/univrm/univrm_install/)
 
 ## Script Samples
 
-* [UniVRMTest](https://github.com/dwango/UniVRMTest)
+* [UniVRMTest](https://github.com/vrm-c/UniVRMTest)
 
 ## Documents
 
-* https://dwango.github.io/vrm/
-* https://dwango.github.io/en/vrm/
-* https://github.com/dwango/UniVRM/wiki
+* https://vrm.dev/
+* https://vrm.dev/en/
+* https://github.com/vrm-c/UniVRM/wiki