diff --git a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongListRoutes.kt b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongListRoutes.kt
index a114c69..7d32f0e 100644
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongListRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongListRoutes.kt
@@ -71,7 +71,7 @@ fun Routing.wsSongListRoutes() {
                 when(frame) {
                     is Frame.Text -> {
                         if(frame.readText() == "ping") {
-                            send(Frame.Pong(frame.data))
+                            send("pong")
                             return@webSocket
                         }
                         val data = frame.readText().let { Json.decodeFromString<SongRequest>(it) }
diff --git a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt
index 2dfa9f2..64aa709 100644
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt
@@ -64,7 +64,7 @@ fun Routing.wsSongRoutes() {
                 when(frame) {
                     is Frame.Text -> {
                         if(frame.readText() == "ping") {
-                            send(Frame.Pong(frame.data))
+                            send("pong")
                             return@webSocket
                         }
                     }
diff --git a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt
index 68b8e15..0b74df6 100644
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt
@@ -64,7 +64,7 @@ fun Routing.wsTimerRoutes() {
                 when(frame) {
                     is Frame.Text -> {
                         if(frame.readText() == "ping") {
-                            send(Frame.Pong(frame.data))
+                            send("pong")
                             return@webSocket
                         }
                     }