diff --git a/components/trainMenu.js b/components/trainMenu.js
index cd416f1..28fd367 100644
--- a/components/trainMenu.js
+++ b/components/trainMenu.js
@@ -180,11 +180,11 @@ export default function TrainMenu({ style }) {
             flex={1}
             onPressButton={() =>
               navigate("howto", {
-                info: "https://train.jr-shikoku.co.jp/usage.htm",
+                info: "https://xprocess.haruk.in/JR-shikoku-Apps-Common/info/train-position",
               })
             }
           >
-            使い方
+            走行位置の見方
           </UsefulBox>
           <UsefulBox
             backgroundColor={"#EA4752"}