diff --git a/components/ActionSheetComponents/JRSTraInfo.js b/components/ActionSheetComponents/JRSTraInfo.js
index 6cb2b17..7b7d6d7 100644
--- a/components/ActionSheetComponents/JRSTraInfo.js
+++ b/components/ActionSheetComponents/JRSTraInfo.js
@@ -125,12 +125,12 @@ export const JRSTraInfo = (props) => {
               borderRadius: 5,
               alignItems: "center",
             }}
-            onPress={() => Linking.openURL("https://twitter.com/JRSTrainfoEX")}
+            onPress={() => Linking.openURL("https://mstdn.y-zu.org/@JRSTraInfoEX")}
           >
-            <MaterialCommunityIcons name="twitter" color="white" size={30} />
+            <MaterialCommunityIcons name="mastodon" color="white" size={30} />
             <View style={{ flex: 1 }} />
             <Text style={{ fontSize: 25, fontWeight: "bold", color: "white" }}>
-              TwitterBOTはこちら！
+              MastodonBOTはこちら！
             </Text>
             <View style={{ flex: 1 }} />
             <Text style={{ fontSize: 25, fontWeight: "bold", color: "white" }}>