diff --git a/DeepLinksBot/src/main/kotlin/DeepLinksBot.kt b/DeepLinksBot/src/main/kotlin/DeepLinksBot.kt
index 5614cbc..7b4f514 100644
--- a/DeepLinksBot/src/main/kotlin/DeepLinksBot.kt
+++ b/DeepLinksBot/src/main/kotlin/DeepLinksBot.kt
@@ -17,12 +17,17 @@ suspend fun main(vararg args: String) {
 
     telegramBotWithBehaviourAndLongPolling(botToken) {
         val me = bot.getMe()
+        val username = me.username
         println(me)
 
+        if (username == null) {
+            error("Unable to start bot work: it have no username")
+        }
+
         onText(
             initialFilter = { it.content.textSources.none { it is BotCommandTextSource } } // excluding messages with commands
         ) {
-            reply(it, makeTelegramDeepLink(me.username, it.content.text))
+            reply(it, makeTelegramDeepLink(username, it.content.text))
         }
 
         onCommand("start", requireOnlyCommandInMessage = true) { // handling of `start` without args
diff --git a/HelloBot/src/main/kotlin/HelloBot.kt b/HelloBot/src/main/kotlin/HelloBot.kt
index 10f83eb..86c58ef 100644
--- a/HelloBot/src/main/kotlin/HelloBot.kt
+++ b/HelloBot/src/main/kotlin/HelloBot.kt
@@ -28,7 +28,7 @@ suspend fun main(vararg args: String) {
 
     telegramBotWithBehaviourAndLongPolling(botToken, CoroutineScope(Dispatchers.IO)) {
         val me = getMe()
-        onMentionWithAnyContent(me.username) { message ->
+        onMentionWithAnyContent(me) { message ->
             val chat = message.chat
 
             val answerText = when (val chat = message.chat) {
diff --git a/StickerSetHandler/src/main/kotlin/StickerSetHandlerBot.kt b/StickerSetHandler/src/main/kotlin/StickerSetHandlerBot.kt
index 95b6330..8e46614 100644
--- a/StickerSetHandler/src/main/kotlin/StickerSetHandlerBot.kt
+++ b/StickerSetHandler/src/main/kotlin/StickerSetHandlerBot.kt
@@ -32,7 +32,7 @@ suspend fun main(args: Array<String>) {
         }
     ) {
         val me = getMe()
-        fun Chat.stickerSetName() = "s${id.chatId}_by_${me.username.usernameWithoutAt}"
+        fun Chat.stickerSetName() = "s${id.chatId}_by_${me.username ?.usernameWithoutAt}"
         onCommand("start") {
             reply(it) {
                 botCommand("delete") + " - to clear stickers"
diff --git a/gradle.properties b/gradle.properties
index 61ca397..a093e5d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -4,8 +4,8 @@ org.gradle.parallel=true
 org.gradle.jvmargs=-Xmx2g
 
 
-kotlin_version=1.8.21
-telegram_bot_api_version=8.0.1
-micro_utils_version=0.19.2
+kotlin_version=1.8.22
+telegram_bot_api_version=9.0.0-branch_9.0.0-build1762
+micro_utils_version=0.19.7
 serialization_version=1.5.1
-ktor_version=2.3.1
+ktor_version=2.3.2