diff --git a/src/main/kotlin/eventDemo/business/command/GameCommandHandler.kt b/src/main/kotlin/eventDemo/business/command/GameCommandHandler.kt
index 2a7cb73..d7c06ac 100644
--- a/src/main/kotlin/eventDemo/business/command/GameCommandHandler.kt
+++ b/src/main/kotlin/eventDemo/business/command/GameCommandHandler.kt
@@ -31,16 +31,9 @@ class GameCommandHandler(
   private val logger = KotlinLogging.logger { }
   private val eventCommandMap = EventCommandMap()
 
-  companion object Config {
-    const val DEFAULT_PRIORITY = 1000
-  }
-
   // subscribe to the event bus to send success notification after save the event.
-  fun subscribeToBus(
-    eventBus: GameEventBus,
-    listenerPriority: Int = DEFAULT_PRIORITY,
-  ) {
-    eventBus.subscribe(listenerPriority) { event: GameEvent ->
+  fun subscribeToBus(eventBus: GameEventBus) {
+    eventBus.subscribe { event: GameEvent ->
       eventCommandMap[event.eventId]?.apply {
         channel.sendSuccess(commandId)()
       } ?: logger.warn { "No Notification for event: $event" }
diff --git a/src/main/kotlin/eventDemo/business/event/projection/projectionListener/ReactionListener.kt b/src/main/kotlin/eventDemo/business/event/projection/projectionListener/ReactionListener.kt
index eccdfcb..27fa66d 100644
--- a/src/main/kotlin/eventDemo/business/event/projection/projectionListener/ReactionListener.kt
+++ b/src/main/kotlin/eventDemo/business/event/projection/projectionListener/ReactionListener.kt
@@ -15,18 +15,14 @@ class ReactionListener(
   private val eventHandler: GameEventHandler,
 ) {
   companion object Config {
-    const val DEFAULT_PRIORITY = -1000
     val registeredListeners = ConcurrentSkipListSet<GameProjectionBus>()
   }
 
   private val logger = KotlinLogging.logger { }
 
-  fun subscribeToBus(
-    projectionBus: GameProjectionBus,
-    priority: Int = DEFAULT_PRIORITY,
-  ) {
+  fun subscribeToBus(projectionBus: GameProjectionBus) {
     if (registeredListeners.add(projectionBus)) {
-      projectionBus.subscribe(priority) { projection: Projection<GameId> ->
+      projectionBus.subscribe { projection: Projection<GameId> ->
         if (projection !is GameState) return@subscribe
         withLoggingContext("projection" to projection.toString()) {
           sendStartGameEvent(projection)
diff --git a/src/main/kotlin/eventDemo/libs/bus/Bus.kt b/src/main/kotlin/eventDemo/libs/bus/Bus.kt
index 4c4f030..831e82a 100644
--- a/src/main/kotlin/eventDemo/libs/bus/Bus.kt
+++ b/src/main/kotlin/eventDemo/libs/bus/Bus.kt
@@ -6,8 +6,5 @@ interface Bus<T> {
   /**
    * @param priority The higher the priority, the more it will be called first
    */
-  fun subscribe(
-    priority: Int = 0,
-    block: suspend (T) -> Unit,
-  )
+  fun subscribe(block: suspend (T) -> Unit)
 }
diff --git a/src/main/kotlin/eventDemo/libs/bus/BusInMemory.kt b/src/main/kotlin/eventDemo/libs/bus/BusInMemory.kt
index a0f13a4..7dd1620 100644
--- a/src/main/kotlin/eventDemo/libs/bus/BusInMemory.kt
+++ b/src/main/kotlin/eventDemo/libs/bus/BusInMemory.kt
@@ -9,25 +9,21 @@ class BusInMemory<E>(
   val name: KClass<*> = BusInMemory::class,
 ) : Bus<E> {
   private val logger = KotlinLogging.logger(name.qualifiedName.toString())
-  private val subscribers: MutableList<Pair<Int, suspend (E) -> Unit>> = mutableListOf()
+  private val subscribers: MutableList<suspend (E) -> Unit> = mutableListOf()
 
   override suspend fun publish(item: E) {
     withLoggingContext("busItem" to item.toString()) {
       logger.info { "Item sent to the bus: $item" }
       subscribers
-        .sortedByDescending { (priority, _) -> priority }
-        .forEach { (_, block) ->
+        .forEach {
           coroutineScope {
-            block(item)
+            it(item)
           }
         }
     }
   }
 
-  override fun subscribe(
-    priority: Int,
-    block: suspend (E) -> Unit,
-  ) {
-    subscribers.add(priority to block)
+  override fun subscribe(block: suspend (E) -> Unit) {
+    subscribers.add(block)
   }
 }
diff --git a/src/main/kotlin/eventDemo/libs/bus/BusInRabbitMQ.kt b/src/main/kotlin/eventDemo/libs/bus/BusInRabbitMQ.kt
index 6486468..f9ffb2a 100644
--- a/src/main/kotlin/eventDemo/libs/bus/BusInRabbitMQ.kt
+++ b/src/main/kotlin/eventDemo/libs/bus/BusInRabbitMQ.kt
@@ -42,10 +42,7 @@ class BusInRabbitMQ<E>(
       }
   }
 
-  override fun subscribe(
-    priority: Int,
-    block: suspend (E) -> Unit,
-  ) {
+  override fun subscribe(block: suspend (E) -> Unit) {
     connectionFactory
       .newConnection()
       .createChannel()