diff --git a/tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/chat/forum/EditForumTopic.kt b/tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/chat/forum/EditForumTopic.kt
index 3039a884bf..7676246e31 100644
--- a/tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/chat/forum/EditForumTopic.kt
+++ b/tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/chat/forum/EditForumTopic.kt
@@ -11,8 +11,8 @@ import dev.inmo.tgbotapi.types.chat.Chat
 suspend fun TelegramBot.editForumTopic(
     chatId: ChatIdentifier,
     messageThreadId: MessageThreadId,
-    name: String,
-    iconEmojiId: CustomEmojiId
+    name: String? = null,
+    iconEmojiId: CustomEmojiId? = null
 ) = execute(
     EditForumTopic(
         chatId,
@@ -25,12 +25,12 @@ suspend fun TelegramBot.editForumTopic(
 suspend fun TelegramBot.editForumTopic(
     chat: Chat,
     messageThreadId: MessageThreadId,
-    name: String,
-    iconEmojiId: CustomEmojiId
+    name: String? = null,
+    iconEmojiId: CustomEmojiId? = null
 ) = editForumTopic(chat.id, messageThreadId, name, iconEmojiId)
 
 suspend fun TelegramBot.editForumTopic(
     chatIdentifier: ChatIdentifier,
     forumTopic: ForumTopic,
-    iconEmojiId: CustomEmojiId = forumTopic.iconEmojiId ?: error("Icon emoji id in forum topic should be presented when edit forum topic basing on other forum topic object")
+    iconEmojiId: CustomEmojiId? = forumTopic.iconEmojiId
 ) = editForumTopic(chatIdentifier, forumTopic.messageThreadId, forumTopic.name, iconEmojiId)
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/forum/EditForumTopic.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/forum/EditForumTopic.kt
index 6a1c8dc768..411642041a 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/forum/EditForumTopic.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/forum/EditForumTopic.kt
@@ -1,11 +1,7 @@
 package dev.inmo.tgbotapi.requests.chat.forum
 
-import dev.inmo.tgbotapi.abstracts.types.ChatRequest
-import dev.inmo.tgbotapi.requests.abstracts.SimpleRequest
 import dev.inmo.tgbotapi.types.*
-import dev.inmo.tgbotapi.utils.RGBColor
 import kotlinx.serialization.*
-import kotlinx.serialization.builtins.serializer
 
 @Serializable
 data class EditForumTopic (
@@ -14,9 +10,9 @@ data class EditForumTopic (
     @SerialName(messageThreadIdField)
     val messageThreadId: MessageThreadId,
     @SerialName(nameField)
-    val name: String,
+    val name: String? = null,
     @SerialName(iconCustomEmojiIdField)
-    val iconEmojiId: CustomEmojiId,
+    val iconEmojiId: CustomEmojiId? = null,
 ): ModifyForumRequest {
     init {
         if (name.length !in threadNameLength) {