diff --git a/CHANGELOG.md b/CHANGELOG.md
index 924e7e3639..f834ad8471 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -55,6 +55,11 @@
     * Interface `PossiblySentViaBot` has been added
         * Currently, only `ChannelMessage` and `CommonMessageImpl` are implementing interface `PossiblySentViaBot`. It
         could be changed in future
+    * Factory `buildMimeType` was added
+    * `BuiltinMimeTypes` was added
+    * Abstraction `ThumbedWithMimeTypeInlineQueryResult` with `thumbMimeType` field was added
+        * `InlineQueryResultGif` and `InlineQueryResultMpeg4Gif` now extend `ThumbedWithMimeTypeInlineQueryResult`
+        instead of `ThumbedInlineQueryResult`
 
 ### 0.27.5
 
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
index 52920da548..2fb043f7bd 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
@@ -1,5 +1,7 @@
 package com.github.insanusmokrassar.TelegramBotAPI.types
 
+import com.github.insanusmokrassar.TelegramBotAPI.utils.BuiltinMimeTypes
+
 typealias Identifier = Long
 typealias MessageIdentifier = Long
 typealias InlineQueryIdentifier = String
@@ -63,6 +65,12 @@ val quizPollExplanationLimit = explanationLimit
 
 val openPeriodPollSecondsLimit = 5 .. 600
 
+val telegramInlineModeGifPermittedMimeTypes = listOf(
+    BuiltinMimeTypes.Image.Jpg,
+    BuiltinMimeTypes.Image.Gif,
+    BuiltinMimeTypes.Video.MP4
+)
+
 const val chatIdField = "chat_id"
 const val messageIdField = "message_id"
 const val updateIdField = "update_id"
@@ -177,6 +185,7 @@ const val stickerFileIdField = "sticker_file_id"
 const val gameShortNameField = "game_short_name"
 
 const val thumbUrlField = "thumb_url"
+const val thumbMimeTypeField = "thumb_mime_type"
 const val thumbWidthField = "thumb_width"
 const val thumbHeightField = "thumb_height"
 
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/InlineQueryResultGifImpl.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/InlineQueryResultGifImpl.kt
index 4785c3cb33..97e23a5d23 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/InlineQueryResultGifImpl.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/InlineQueryResultGifImpl.kt
@@ -7,6 +7,7 @@ import com.github.insanusmokrassar.TelegramBotAPI.types.InlineQueries.abstracts.
 import com.github.insanusmokrassar.TelegramBotAPI.types.ParseMode.ParseMode
 import com.github.insanusmokrassar.TelegramBotAPI.types.ParseMode.parseModeField
 import com.github.insanusmokrassar.TelegramBotAPI.types.buttons.InlineKeyboardMarkup
+import com.github.insanusmokrassar.TelegramBotAPI.utils.MimeType
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
@@ -18,6 +19,8 @@ data class InlineQueryResultGifImpl(
     override val url: String,
     @SerialName(thumbUrlField)
     override val thumbUrl: String,
+    @SerialName(thumbMimeTypeField)
+    override val thumbMimeType: MimeType? = null,
     @SerialName(gifWidthField)
     override val width: Int? = null,
     @SerialName(gifHeightField)
@@ -36,4 +39,10 @@ data class InlineQueryResultGifImpl(
     override val inputMessageContent: InputMessageContent? = null
 ) : InlineQueryResultGif {
     override val type: String = inlineQueryResultGifType
+
+    init {
+        if (thumbMimeType != null && thumbMimeType !in telegramInlineModeGifPermittedMimeTypes) {
+            error("Passed thumb mime type is not permitted in Telegram Bot API. Passed $thumbMimeType, but permitted $telegramInlineModeGifPermittedMimeTypes")
+        }
+    }
 }
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/InlineQueryResultMpeg4GifImpl.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/InlineQueryResultMpeg4GifImpl.kt
index acf78ca86e..6456378bf9 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/InlineQueryResultMpeg4GifImpl.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/InlineQueryResultMpeg4GifImpl.kt
@@ -7,6 +7,7 @@ import com.github.insanusmokrassar.TelegramBotAPI.types.InlineQueries.abstracts.
 import com.github.insanusmokrassar.TelegramBotAPI.types.ParseMode.ParseMode
 import com.github.insanusmokrassar.TelegramBotAPI.types.ParseMode.parseModeField
 import com.github.insanusmokrassar.TelegramBotAPI.types.buttons.InlineKeyboardMarkup
+import com.github.insanusmokrassar.TelegramBotAPI.utils.MimeType
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
@@ -18,6 +19,8 @@ data class InlineQueryResultMpeg4GifImpl(
     override val url: String,
     @SerialName(thumbUrlField)
     override val thumbUrl: String,
+    @SerialName(thumbMimeTypeField)
+    override val thumbMimeType: MimeType? = null,
     @SerialName(mpeg4GifWidthField)
     override val width: Int? = null,
     @SerialName(mpeg4GifHeightField)
@@ -36,4 +39,10 @@ data class InlineQueryResultMpeg4GifImpl(
     override val inputMessageContent: InputMessageContent? = null
 ) : InlineQueryResultMpeg4Gif {
     override val type: String = inlineQueryResultMpeg4GifType
+
+    init {
+        if (thumbMimeType != null && thumbMimeType !in telegramInlineModeGifPermittedMimeTypes) {
+            error("Passed thumb mime type is not permitted in Telegram Bot API. Passed $thumbMimeType, but permitted $telegramInlineModeGifPermittedMimeTypes")
+        }
+    }
 }
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/ThumbedInlineQueryResult.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/ThumbedInlineQueryResult.kt
index e5a1f58ca1..df829a6b4f 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/ThumbedInlineQueryResult.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/ThumbedInlineQueryResult.kt
@@ -1,5 +1,11 @@
 package com.github.insanusmokrassar.TelegramBotAPI.types.InlineQueries.InlineQueryResult.abstracts
 
+import com.github.insanusmokrassar.TelegramBotAPI.utils.MimeType
+
 interface ThumbedInlineQueryResult : InlineQueryResult {
     val thumbUrl: String?
+}
+
+interface ThumbedWithMimeTypeInlineQueryResult : ThumbedInlineQueryResult {
+    val thumbMimeType: MimeType?
 }
\ No newline at end of file
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/results/gif/InlineQueryResultGif.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/results/gif/InlineQueryResultGif.kt
index 215f839003..ed547b05b7 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/results/gif/InlineQueryResultGif.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/results/gif/InlineQueryResultGif.kt
@@ -2,4 +2,4 @@ package com.github.insanusmokrassar.TelegramBotAPI.types.InlineQueries.InlineQue
 
 import com.github.insanusmokrassar.TelegramBotAPI.types.InlineQueries.InlineQueryResult.abstracts.*
 
-interface InlineQueryResultGif : InlineQueryResultGifCommon, UrlInlineQueryResult, ThumbedInlineQueryResult, SizedInlineQueryResult, DuratedInlineResultQuery
\ No newline at end of file
+interface InlineQueryResultGif : InlineQueryResultGifCommon, UrlInlineQueryResult, ThumbedWithMimeTypeInlineQueryResult, SizedInlineQueryResult, DuratedInlineResultQuery
\ No newline at end of file
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/results/mpeg4gif/InlineQueryResultMpeg4Gif.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/results/mpeg4gif/InlineQueryResultMpeg4Gif.kt
index ffb42e5274..e5d1f07287 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/results/mpeg4gif/InlineQueryResultMpeg4Gif.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/InlineQueries/InlineQueryResult/abstracts/results/mpeg4gif/InlineQueryResultMpeg4Gif.kt
@@ -2,4 +2,4 @@ package com.github.insanusmokrassar.TelegramBotAPI.types.InlineQueries.InlineQue
 
 import com.github.insanusmokrassar.TelegramBotAPI.types.InlineQueries.InlineQueryResult.abstracts.*
 
-interface InlineQueryResultMpeg4Gif : InlineQueryResultMpeg4GifCommon, UrlInlineQueryResult, ThumbedInlineQueryResult, SizedInlineQueryResult, DuratedInlineResultQuery
\ No newline at end of file
+interface InlineQueryResultMpeg4Gif : InlineQueryResultMpeg4GifCommon, UrlInlineQueryResult, ThumbedWithMimeTypeInlineQueryResult, SizedInlineQueryResult, DuratedInlineResultQuery
\ No newline at end of file
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/BuiltinMimeTypes.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/BuiltinMimeTypes.kt
new file mode 100644
index 0000000000..a3068df617
--- /dev/null
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/BuiltinMimeTypes.kt
@@ -0,0 +1,11 @@
+package com.github.insanusmokrassar.TelegramBotAPI.utils
+
+object BuiltinMimeTypes {
+    object Image {
+        val Jpg = buildMimeType("image/jpeg")
+        val Gif = buildMimeType("image/gif")
+    }
+    object Video {
+        val MP4 = buildMimeType("video/mp4")
+    }
+}
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
index 65cb95b5ec..e7ffa19f8d 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
@@ -7,5 +7,7 @@ expect class MimeType {
     val raw: String
 }
 
+expect fun buildMimeType(raw: String): MimeType
+
 @Serializer(MimeType::class)
 internal expect object MimeTypeSerializer : KSerializer<MimeType>
diff --git a/TelegramBotAPI/src/jsMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt b/TelegramBotAPI/src/jsMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
index a99e334557..dece7f4e4f 100644
--- a/TelegramBotAPI/src/jsMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
+++ b/TelegramBotAPI/src/jsMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
@@ -23,7 +23,7 @@ internal actual object MimeTypeSerializer : KSerializer<MimeType> {
     override fun deserialize(decoder: Decoder): MimeType {
         val mimeType = decoder.decodeString()
         return mimesCache.getOrPut(mimeType) {
-            MimeType(mimeType)
+            buildMimeType(mimeType)
         }
     }
 
@@ -31,3 +31,5 @@ internal actual object MimeTypeSerializer : KSerializer<MimeType> {
         encoder.encodeString(value.raw)
     }
 }
+
+actual fun buildMimeType(raw: String) = MimeType(raw)
diff --git a/TelegramBotAPI/src/jvmMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt b/TelegramBotAPI/src/jvmMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
index b3f85ace6d..a653618e7a 100644
--- a/TelegramBotAPI/src/jvmMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
+++ b/TelegramBotAPI/src/jvmMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/MimeType.kt
@@ -24,3 +24,5 @@ internal actual object MimeTypeSerializer : KSerializer<MimeType> {
         encoder.encodeString(value.raw)
     }
 }
+
+actual fun buildMimeType(raw: String): MimeType = MimeType(raw)