diff --git a/Assets/VRM/Editor/CIBuild.cs b/Assets/VRM/Editor/CIBuild.cs
index 00b486b6c..a987ae6b8 100644
--- a/Assets/VRM/Editor/CIBuild.cs
+++ b/Assets/VRM/Editor/CIBuild.cs
@@ -13,7 +13,7 @@ namespace VRM
         public static void Build()
         {
             var scenes = new string[]{
-                "./Assets/VRM.Samples/Scenes/SimpleViewer.unity",
+                "./Assets/VRM/Samples/SimpleViewer/SimpleViewer.unity",
             };
 
             var report = BuildPipeline.BuildPlayer(
diff --git a/README.ja.md b/README.ja.md
index 240437953..e78560672 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -31,27 +31,29 @@ https://vrm.dev/docs/univrm/install/
 
 `v0.81.0` からパッケージの分割方法を変更しました。
 
-|                             | UniGLTF_VRMShaders | VRM     | VRM-1.0β |
-|-----------------------------|--------------------|---------|----------|
-| VRMを使うとき               | install            | install |          |
-| VRM1を使うとき              | install            |         | install  |
-| VRMとVRM1両方使うとき       | instlal            | install | install  |
-| GLTF か Shader だけ使うとき | install            |         |          |
+|                    | UniGLTF_VRMShaders | UniVRM  | VRM     |
+|--------------------|--------------------|---------|---------|
+| GLTF だけ使うとき  | install            |         |         |
+| VRM-0.X を使うとき | install            | install |         |
+| VRM-1.0 を使うとき | install            |         | install |
 
 ### UPM(開発者向け)
 
 https://vrm.dev/docs/univrm/install/univrm_upm/
 
-`v0.80.0` を任意のバージョンに読み替えてください。
+`v0.81.0` を任意のバージョンに読み替えてください。
 
+`v0.81.0` で一部の id が変更になりました。
+
+`Packages/manifest.json` の抜粋
 ```json
 {
   "dependencies": {
-    "com.vrmc.vrmshaders": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRMShaders#v0.80.0",
-    "com.vrmc.unigltf": "https://github.com/vrm-c/UniVRM.git?path=/Assets/UniGLTF#v0.80.0",
-    "com.vrmc.univrm": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRM#v0.80.0",
+    "com.vrmc.vrmshaders": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRMShaders#v0.81.0",
+    "com.vrmc.gltf": "https://github.com/vrm-c/UniVRM.git?path=/Assets/UniGLTF#v0.81.0", // unigltf to gltf
+    "com.vrmc.univrm": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRM#v0.81.0",
     // VRM-1.0βを試す場合
-    "com.vrmc.vrm": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRM10#v0.80.0",
+    "com.vrmc.vrm": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRM10#v0.80.0", // rename univrm1 to vrm
 }
 ```
 
diff --git a/README.md b/README.md
index 019c675e7..bb1e13506 100644
--- a/README.md
+++ b/README.md
@@ -30,28 +30,30 @@ Download from [Release](https://github.com/vrm-c/UniVRM/releases)
 
 From `v0.81.0` UniVRM has 3 unitypackages.
 
-|                       | UniGLTF_VRMShaders | VRM     | VRM1.0β |
-|-----------------------|--------------------|---------|---------|
-| for VRM               | install            | install |         |
-| for VRM1              | install            |         | install |
-| for both VRM and VRM1 | instlal            | install | install |
-| only GLTF or Shader   | install            |         |         |
+|             | UniGLTF_VRMShaders | UniVRM  | VRM     |
+|-------------|--------------------|---------|---------|
+| for GLTF    | install            |         |         |
+| for VRM-0.X | install            | install |         |
+| for VRM-1.0 | install            |         | install |
 
 ## UPM(developer)
 
 https://vrm.dev/en/docs/univrm/install/univrm_upm/
 
-Copy and paste the following git urls in `Packages/manifest.json` for UniVRM installation.  
 To upgrade/downgrade UniVRM version, for example, replace `v0.80.0` with any version.
 
+From `v0.81.0` package rename, reversion.
+
+Copy and paste the following git urls in `Packages/manifest.json` for UniVRM installation.  
 ```json
 {
   "dependencies": {
-    "com.vrmc.vrmshaders": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRMShaders#v0.80.0",
-    "com.vrmc.unigltf": "https://github.com/vrm-c/UniVRM.git?path=/Assets/UniGLTF#v0.80.0",
-    "com.vrmc.univrm": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRM#v0.80.0",
+    "com.vrmc.vrmshaders": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRMShaders#v0.81.0",
+    "com.vrmc.gltf": "https://github.com/vrm-c/UniVRM.git?path=/Assets/UniGLTF#v0.81.0", // rename unigltf to gltf
+    "com.vrmc.univrm": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRM#v0.81.0",
     // for VRM-1.0β
-    "com.vrmc.vrm": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRM10#v0.80.0",}
+    "com.vrmc.vrm": "https://github.com/vrm-c/UniVRM.git?path=/Assets/VRM10#v0.81.0", // rename univrm1 to vrm
+  }
 }
 ```