diff --git a/CHANGELOG.md b/CHANGELOG.md
index d74864db7e..596c6cf9d3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # TelegramBotAPI changelog
 
+## 9.1.2
+
+* `Core`:
+  * Fix of `MessageContent` serialization
+
 ## 9.1.1
 
 * `Core`:
diff --git a/gradle.properties b/gradle.properties
index 61ebf873ea..bf7e84879a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -6,4 +6,4 @@ kotlin.incremental=true
 kotlin.incremental.js=true
 
 library_group=dev.inmo
-library_version=9.1.1
+library_version=9.1.2
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/content/Abstracts.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/content/Abstracts.kt
index 9d6eaac1c9..dd346d6403 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/content/Abstracts.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/content/Abstracts.kt
@@ -13,8 +13,10 @@ import dev.inmo.tgbotapi.types.media.TelegramMedia
 import dev.inmo.tgbotapi.types.message.abstracts.*
 import dev.inmo.tgbotapi.types.threadId
 import dev.inmo.tgbotapi.utils.RiskFeature
+import kotlinx.serialization.Serializable
 import kotlinx.serialization.modules.*
 
+@Serializable
 sealed interface MessageContent: ResendableContent {
     companion object {
         @RiskFeature("This serialization module can be changed in near releases")
@@ -49,6 +51,7 @@ sealed interface MessageContent: ResendableContent {
                 subclass(AnimationContent::class)
                 subclass(StickerContent::class)
                 subclass(InvoiceContent::class)
+                subclass(StoryContent::class)
 
                 additionalBuilder()
             }
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/content/LocationContent.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/content/LocationContent.kt
index f4f932158c..c90ebd31c4 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/content/LocationContent.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/content/LocationContent.kt
@@ -58,7 +58,6 @@ sealed interface LocationContent : MessageContent {
 /**
  * [KSerializer] for [LocationContent]
  */
-@Serializer(LocationContent::class)
 object LocationContentSerializer : KSerializer<LocationContent> {
     override val descriptor: SerialDescriptor = buildClassSerialDescriptor("LocationContent") {
         element(LocationContent::location.name, LocationSerializer.descriptor)
@@ -85,7 +84,6 @@ object LocationContentSerializer : KSerializer<LocationContent> {
             encodeSerializableElement(descriptor, 0, LocationSerializer, value.location)
         }.endStructure(descriptor)
     }
-
 }
 
 /**
@@ -94,7 +92,7 @@ object LocationContentSerializer : KSerializer<LocationContent> {
  *
  * @see dev.inmo.tgbotapi.extensions.behaviour_builder.utils.followLocation
  */
-@Serializable(LocationContentSerializer::class)
+@Serializable
 data class LiveLocationContent(
     override val location: LiveLocation
 ) : LocationContent {
@@ -127,7 +125,7 @@ data class LiveLocationContent(
  * Just a [LocationContent] with [StaticLocation] [location]. It could be [LiveLocationContent] in previous time in case
  * when somebody has sent [LiveLocation] in chat and then stop to broadcast location
  */
-@Serializable(LocationContentSerializer::class)
+@Serializable
 data class StaticLocationContent(
     override val location: StaticLocation
 ) : LocationContent {