diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc8de64214..8b9334f267 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,11 @@
     * `FlowsUpdatesFilter` now have two additional flows: `pollAnswerFlow`, `unknownUpdateTypeFlow`
     * `ExtendedUser` (`typealias`) was added as a `PreviewFeature`
 
+### 0.25.1
+
+* Update kotlin: `1.3.70` -> `1.3.71`
+* Fix of error inside of update utils for media groups
+
 ## 0.24.0
 
 * `TelegramBotAPI`:
diff --git a/TelegramBotAPI-extensions-api/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/api/InternalUtils/UpdatesUtils.kt b/TelegramBotAPI-extensions-api/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/api/InternalUtils/UpdatesUtils.kt
index b7eb65f209..a48d6695ee 100644
--- a/TelegramBotAPI-extensions-api/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/api/InternalUtils/UpdatesUtils.kt
+++ b/TelegramBotAPI-extensions-api/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/api/InternalUtils/UpdatesUtils.kt
@@ -23,19 +23,19 @@ internal fun List<Update>.convertWithMediaGroupUpdates(): List<Update> {
     val resultUpdates = mutableListOf<Update>()
     val mediaGroups = mutableMapOf<MediaGroupIdentifier, MutableList<BaseSentMessageUpdate>>()
     for (update in this) {
+        val data = (update.data as? MediaGroupMessage)
+        if (data == null) {
+            resultUpdates.add(update)
+            continue
+        }
         when (update) {
             is BaseEditMessageUpdate -> resultUpdates.add(
                 update.toEditMediaGroupUpdate()
             )
             is BaseSentMessageUpdate -> {
-                val data = update.data
-                if (data is MediaGroupMessage) {
-                    mediaGroups.getOrPut(data.mediaGroupId) {
-                        mutableListOf()
-                    }.add(update)
-                } else {
-                    resultUpdates.add(update)
-                }
+                mediaGroups.getOrPut(data.mediaGroupId) {
+                    mutableListOf()
+                }.add(update)
             }
             else -> resultUpdates.add(update)
         }
diff --git a/gradle.properties b/gradle.properties
index a917de2714..87bf45babc 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 kotlin.code.style=official
-kotlin_version=1.3.70
+kotlin_version=1.3.71
 kotlin_coroutines_version=1.3.5
 kotlin_serialisation_runtime_version=0.20.0
 klock_version=1.10.0
@@ -7,6 +7,6 @@ uuid_version=0.1.0
 ktor_version=1.3.2
 
 library_group=com.github.insanusmokrassar
-library_version=0.25.0
+library_version=0.25.1
 
 gradle_bintray_plugin_version=1.8.4