diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/Ktor/base/AbstractRequestCallFactory.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/Ktor/base/AbstractRequestCallFactory.kt
index b6d31e8875..e62250f706 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/Ktor/base/AbstractRequestCallFactory.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/Ktor/base/AbstractRequestCallFactory.kt
@@ -1,6 +1,7 @@
 package dev.inmo.tgbotapi.bot.Ktor.base
 
 import dev.inmo.micro_utils.coroutines.safely
+import dev.inmo.micro_utils.coroutines.safelyWithResult
 import dev.inmo.tgbotapi.bot.Ktor.KtorCallFactory
 import dev.inmo.tgbotapi.bot.exceptions.newRequestException
 import dev.inmo.tgbotapi.requests.GetUpdates
@@ -57,7 +58,7 @@ abstract class AbstractRequestCallFactory : KtorCallFactory {
             val content = response.receive<String>()
             val responseObject = jsonFormatter.decodeFromString(Response.serializer(), content)
 
-            return safely {
+            return safelyWithResult {
                 (responseObject.result?.let {
                     jsonFormatter.decodeFromJsonElement(request.resultDeserializer, it)
                 } ?: response.let {
@@ -67,7 +68,7 @@ abstract class AbstractRequestCallFactory : KtorCallFactory {
                         "Can't get result object from $content"
                     )
                 })
-            }
+            }.getOrThrow()
         }
     }
 
@@ -76,4 +77,4 @@ abstract class AbstractRequestCallFactory : KtorCallFactory {
         urlsKeeper: TelegramAPIUrlsKeeper,
         request: Request<T>
     ): Any?
-}
\ No newline at end of file
+}
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/invite_links/ChatJoinRequestAnswer.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/invite_links/ChatJoinRequestAnswer.kt
index 78c34d8c5c..ab4c705187 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/invite_links/ChatJoinRequestAnswer.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/invite_links/ChatJoinRequestAnswer.kt
@@ -2,9 +2,7 @@ package dev.inmo.tgbotapi.requests.chat.invite_links
 
 import dev.inmo.tgbotapi.requests.abstracts.SimpleRequest
 import dev.inmo.tgbotapi.types.*
-import kotlinx.serialization.DeserializationStrategy
-import kotlinx.serialization.Serializable
-import kotlinx.serialization.SerializationStrategy
+import kotlinx.serialization.*
 import kotlinx.serialization.builtins.serializer
 
 sealed interface ChatJoinRequestAnswer : SimpleRequest<Boolean> {
@@ -17,7 +15,9 @@ sealed interface ChatJoinRequestAnswer : SimpleRequest<Boolean> {
 
 @Serializable
 data class ApproveChatJoinRequest(
+    @SerialName(chatIdField)
     override val chatId: ChatIdentifier,
+    @SerialName(userIdField)
     override val userId: UserId
 ) : ChatJoinRequestAnswer {
     override val requestSerializer: SerializationStrategy<*>
@@ -28,7 +28,9 @@ data class ApproveChatJoinRequest(
 
 @Serializable
 data class DeclineChatJoinRequest(
+    @SerialName(chatIdField)
     override val chatId: ChatIdentifier,
+    @SerialName(userIdField)
     override val userId: UserId
 ) : ChatJoinRequestAnswer {
     override val requestSerializer: SerializationStrategy<*>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/ChatJoinRequest.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/ChatJoinRequest.kt
index f8c138a1d8..05ca019dcc 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/ChatJoinRequest.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/ChatJoinRequest.kt
@@ -9,12 +9,12 @@ import kotlinx.serialization.Serializable
 data class ChatJoinRequest(
     @SerialName(chatField)
     val chat: PublicChat,
-    @SerialName(userField)
+    @SerialName(fromField)
     override val from: User,
     @SerialName(dateField)
     val date: TelegramDate,
-    @SerialName(bioField)
-    val bio: String,
     @SerialName(inviteLinkField)
-    val inviteLink: ChatInviteLink
+    val inviteLink: ChatInviteLink,
+    @SerialName(bioField)
+    val bio: String? = null
 ) : FromUser