diff --git a/doc/Auxiliary-Files.md b/doc/Auxiliary-Files.md
index 83e8f78..c48f3d5 100644
--- a/doc/Auxiliary-Files.md
+++ b/doc/Auxiliary-Files.md
@@ -4,5 +4,5 @@
     * 制御則の解説
     * パラメータファイルの設定方法概要
 
-* [libypspur コマンド一覧](https://github.com/openspur/yp-spur/raw/master/doc/files/libypspur_cheatsheet.pdf)
+* [libypspur コマンド一覧](https://raw.githubusercontent.com/openspur/yp-spur/master/doc/files/libypspur_cheatsheet.pdf)
     * known issue: `Spur_set_pos_FS` が記載されているが実際には存在しない
diff --git a/doc/Control-Architecture.md b/doc/Control-Architecture.md
index 107173a..aec4493 100644
--- a/doc/Control-Architecture.md
+++ b/doc/Control-Architecture.md
@@ -1,10 +1,10 @@
 The following figure shows a control diagram of YP-Spur.
 
-![Spur control system](https://github.com/openspur/yp-spur/wiki/images/spur_system_en.png)
+![Spur control system](images/spur_system_en.png)
 
 Trajectory tracking controller is expressed by:
 
-![Spur line following control](https://github.com/openspur/yp-spur/wiki/images/spurline_en.png)
+![Spur line following control](images/spurline_en.png)
 
 The original idea of the control approach is reported in [1-3].