diff --git a/book/blender/README.md b/book/blender/README.md
index cafc2dc..0eb7258 100644
--- a/book/blender/README.md
+++ b/book/blender/README.md
@@ -1,8 +1,19 @@
 # blender
 
-[blender](https://blender.org/)でモデルを編集して、ueで読み込みます。
+[blender](https://projects.blender.org/blender/blender)でモデルを編集して、ueで読み込みます。
 
-- version: `4.2`
+- version: `4.5`
+
+```sh
+# https://developer.blender.org/docs/handbook/building_blender/windows/
+$ cd c:\blender-git
+$ git clone https://projects.blender.org/blender/blender.git
+$ cd c:\blender-git\blender
+$ make update 
+$ make
+```
+
+## addon
 
 |addon|body|
 |---|---|