diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c1cd57147..db09522152 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -51,6 +51,8 @@ media for present out)
 
 ### 0.12.4 UpdatesPoller optimisations
 
+* Optimized preparing of media group in `UpdatesPoller`
+
 ## 0.11.0
 
 * Kotlin `1.3.11` -> `1.3.21`
diff --git a/src/main/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/extensions/UpdatesPoller.kt b/src/main/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/extensions/UpdatesPoller.kt
index 3009dced12..62914bb9f7 100644
--- a/src/main/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/extensions/UpdatesPoller.kt
+++ b/src/main/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/extensions/UpdatesPoller.kt
@@ -31,7 +31,8 @@ class UpdatesPoller(
     private suspend fun pushMediaGroupUpdate(update: BaseMessageUpdate? = null) {
         val inputMediaGroupId = (update ?.data as? MediaGroupMessage) ?.mediaGroupId
         if (mediaGroup.isNotEmpty() && inputMediaGroupId ?.equals(mediaGroup.mediaGroupId) != true) {
-            listOf(*mediaGroup.toTypedArray()).toMediaGroupUpdate() ?.let {
+            mediaGroup.sortBy { it.updateId }
+            mediaGroup.toMediaGroupUpdate() ?.let {
                 sendToBlock(it)
             } ?: mediaGroup.forEach {
                 sendToBlock(it)