diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/InlineKeyboardButtons/InlineKeyboardButton.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/InlineKeyboardButtons/InlineKeyboardButton.kt
index 4940bba946..19f79faf4d 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/InlineKeyboardButtons/InlineKeyboardButton.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/InlineKeyboardButtons/InlineKeyboardButton.kt
@@ -7,22 +7,22 @@ import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.JsonElement
 
 @Serializable(InlineKeyboardButtonSerializer::class)
-sealed class InlineKeyboardButton {
-    abstract val text: String
+sealed interface InlineKeyboardButton {
+    val text: String
 }
 
 @Serializable
 data class UnknownInlineKeyboardButton internal constructor(
     override val text: String,
     val rawData: JsonElement
-) : InlineKeyboardButton()
+) : InlineKeyboardButton
 
 @Serializable
 data class PayInlineKeyboardButton(
     override val text: String,
     @SerialName(payField)
     val pay: Boolean
-) : InlineKeyboardButton()
+) : InlineKeyboardButton
 
 @Serializable
 data class CallbackDataInlineKeyboardButton(
@@ -30,13 +30,13 @@ data class CallbackDataInlineKeyboardButton(
     override val text: String,
     @SerialName(callbackDataField)
     val callbackData: String
-) : InlineKeyboardButton()
+) : InlineKeyboardButton
 
 @Serializable
 data class CallbackGameInlineKeyboardButton(
     @SerialName(textField)
     override val text: String
-) : InlineKeyboardButton() {
+) : InlineKeyboardButton {
     @SerialName(callbackGameField)
     private val callbackGame = CallbackGame
 }
@@ -46,25 +46,25 @@ data class LoginURLInlineKeyboardButton(
     override val text: String,
     @SerialName(loginUrlField)
     val loginUrl: LoginURL
-) : InlineKeyboardButton()
+) : InlineKeyboardButton
 
 @Serializable
 data class SwitchInlineQueryCurrentChatInlineKeyboardButton(
     override val text: String,
     @SerialName(switchInlineQueryCurrentChatField)
     val switchInlineQueryCurrentChat: String
-) : InlineKeyboardButton()
+) : InlineKeyboardButton
 
 @Serializable
 data class SwitchInlineQueryInlineKeyboardButton(
     override val text: String,
     @SerialName(switchInlineQueryField)
     val switchInlineQuery: String
-) : InlineKeyboardButton()
+) : InlineKeyboardButton
 
 @Serializable
 data class URLInlineKeyboardButton(
     override val text: String,
     @SerialName(urlField)
     val url: String
-) : InlineKeyboardButton()
+) : InlineKeyboardButton