diff --git a/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/updates/BaseMessagesUpdatesConversations.kt b/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/updates/BaseMessagesUpdatesConversations.kt
index 1280b4a397..0341007268 100644
--- a/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/updates/BaseMessagesUpdatesConversations.kt
+++ b/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/updates/BaseMessagesUpdatesConversations.kt
@@ -2,26 +2,19 @@ package com.github.insanusmokrassar.TelegramBotAPI.extensions.utils.updates
 
 import com.github.insanusmokrassar.TelegramBotAPI.types.update.MediaGroupUpdates.*
 import com.github.insanusmokrassar.TelegramBotAPI.types.update.abstracts.*
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.mapNotNull
+import kotlinx.coroutines.flow.*
 
-fun Flow<Update>.onlyBaseMessageUpdates(): Flow<BaseMessageUpdate> = mapNotNull {
-    it as? BaseMessageUpdate
-}
+fun Flow<Update>.onlyBaseMessageUpdates(): Flow<BaseMessageUpdate> = filterIsInstance()
 
 /**
  * Converts flow to [Flow] of [BaseSentMessageUpdate]
  */
-fun Flow<BaseMessageUpdate>.onlySentMessageUpdates(): Flow<BaseSentMessageUpdate> = mapNotNull {
-    it as? BaseSentMessageUpdate
-}
+fun Flow<BaseMessageUpdate>.onlySentMessageUpdates(): Flow<BaseSentMessageUpdate> = filterIsInstance()
 
 /**
  * Converts flow to [Flow] of [BaseSentMessageUpdate]
  */
-fun Flow<BaseMessageUpdate>.onlyEditMessageUpdates(): Flow<BaseEditMessageUpdate> = mapNotNull {
-    it as? BaseEditMessageUpdate
-}
+fun Flow<BaseMessageUpdate>.onlyEditMessageUpdates(): Flow<BaseEditMessageUpdate> = filterIsInstance()
 
 /**
  * Converts flow to [Flow] of [MediaGroupUpdate]. Please, remember that it could be either [EditMediaGroupUpdate]
@@ -30,20 +23,14 @@ fun Flow<BaseMessageUpdate>.onlyEditMessageUpdates(): Flow<BaseEditMessageUpdate
  * @see onlySentMediaGroupUpdates
  * @see onlyEditMediaGroupUpdates
  */
-fun Flow<BaseMessageUpdate>.onlyMediaGroupsUpdates(): Flow<MediaGroupUpdate> = mapNotNull {
-    it as? MediaGroupUpdate
-}
+fun Flow<BaseMessageUpdate>.onlyMediaGroupsUpdates(): Flow<MediaGroupUpdate> = filterIsInstance()
 
 /**
  * Converts flow to [Flow] of [SentMediaGroupUpdate]
  */
-fun Flow<MediaGroupUpdate>.onlySentMediaGroupUpdates(): Flow<SentMediaGroupUpdate> = mapNotNull {
-    it as? SentMediaGroupUpdate
-}
+fun Flow<MediaGroupUpdate>.onlySentMediaGroupUpdates(): Flow<SentMediaGroupUpdate> = filterIsInstance()
 
 /**
  * Converts flow to [Flow] of [EditMediaGroupUpdate]
  */
-fun Flow<MediaGroupUpdate>.onlyEditMediaGroupUpdates(): Flow<EditMediaGroupUpdate> = mapNotNull {
-    it as? EditMediaGroupUpdate
-}
+fun Flow<MediaGroupUpdate>.onlyEditMediaGroupUpdates(): Flow<EditMediaGroupUpdate> = filterIsInstance()