diff --git a/CHANGELOG.md b/CHANGELOG.md
index d359487b1d..f8f107fc2f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,8 @@
     * New extension `TelegramMediaFile#asDocumentFile`
     * New extension `VideoFile#toInputMediaVideo`
     * New exception `WrongFileIdentifierException`
+    * Extension `String#toInputMediaFileAttachmentName` now is deprecated
+    * Property `ThumbedInputMedia#thumbMedia` now is deprecated
 * `API`:
     * New extensions for media groups:
         * `TelegramBot#sendPlaylist`
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/InputMedia.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/InputMedia.kt
index 7942ed7ccf..48e99180ca 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/InputMedia.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/InputMedia.kt
@@ -3,6 +3,7 @@ package dev.inmo.tgbotapi.types.InputMedia
 import dev.inmo.tgbotapi.requests.abstracts.InputFile
 import kotlinx.serialization.Serializable
 
+@Deprecated("Will be removed due to redundancy for end-side users")
 fun String.toInputMediaFileAttachmentName() = "attach://$this"
 
 @Serializable(InputMediaSerializer::class)
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/ThumbedInputMedia.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/ThumbedInputMedia.kt
index 5588de4677..1bda788bf4 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/ThumbedInputMedia.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/ThumbedInputMedia.kt
@@ -9,6 +9,7 @@ interface ThumbedInputMedia : InputMedia {
     val thumb: InputFile?
     @Serializable
     @SerialName(thumbField)
+    @Deprecated("Will be removed due to useless state")
     val thumbMedia: String?
         get() = thumb ?.let {
             when (it) {