diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74a667ead1..a5313b3487 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
     * New extensions `telegramBotWithBehaviour`
     * All triggers (`on*` extensions) have been modified to work in parallel by default (new parameter
       `performInParallel`, by default `true`)
+    * All behaviour builder extensions got new parameter `defaultExceptionsHandler`
 * `API`:
     * All `reply` and subsequent extension have been replaced in send package
 * `Bot API 5.3`:
diff --git a/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/BehaviourBuilders.kt b/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/BehaviourBuilders.kt
index cd14764a51..e4473c5431 100644
--- a/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/BehaviourBuilders.kt
+++ b/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/BehaviourBuilders.kt
@@ -1,11 +1,14 @@
 package dev.inmo.tgbotapi.extensions.behaviour_builder
 
+import dev.inmo.micro_utils.coroutines.ContextSafelyExceptionHandler
+import dev.inmo.micro_utils.coroutines.ExceptionHandler
 import dev.inmo.tgbotapi.bot.TelegramBot
 import dev.inmo.tgbotapi.extensions.utils.updates.retrieving.longPolling
 import dev.inmo.tgbotapi.extensions.utils.updates.retrieving.startGettingOfUpdatesByLongPolling
 import dev.inmo.tgbotapi.updateshandlers.FlowsUpdatesFilter
 import dev.inmo.tgbotapi.utils.PreviewFeature
 import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.plus
 
 /**
  * Use this method in case you wish to make some additional actions with [flowUpdatesFilter].
@@ -20,11 +23,18 @@ import kotlinx.coroutines.CoroutineScope
 suspend fun TelegramBot.buildBehaviour(
     scope: CoroutineScope,
     flowUpdatesFilter: FlowsUpdatesFilter,
+    defaultExceptionsHandler: ExceptionHandler<Unit>? = null,
     block: BehaviourContextReceiver<Unit>
 ) {
     BehaviourContext(
         this,
-        scope,
+        scope.let {
+              if (defaultExceptionsHandler == null) {
+                  it
+              } else {
+                  it + ContextSafelyExceptionHandler(defaultExceptionsHandler)
+              }
+        },
         flowUpdatesFilter
     ).block()
 }
@@ -40,11 +50,13 @@ suspend fun TelegramBot.buildBehaviour(
 @PreviewFeature
 suspend fun TelegramBot.buildBehaviour(
     scope: CoroutineScope,
+    defaultExceptionsHandler: ExceptionHandler<Unit>? = null,
     block: BehaviourContextReceiver<Unit>
 ) = FlowsUpdatesFilter().let {
     buildBehaviour(
         scope,
         it,
+        defaultExceptionsHandler,
         block
     )
     longPolling(
diff --git a/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/BehaviourContext.kt b/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/BehaviourContext.kt
index f4d91975fb..6ee5b6821e 100644
--- a/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/BehaviourContext.kt
+++ b/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/BehaviourContext.kt
@@ -60,12 +60,12 @@ suspend fun <T> BehaviourContext.doInSubContextWithUpdatesFilter(
     newFlowsUpdatesFilterSetUp = updatesFilter ?.let {
         { oldOne ->
             weakLaunch {
-                oldOne.allUpdatesFlow.filter { updatesFilter(it) }.subscribeSafelyWithoutExceptions(this, asUpdateReceiver)
+                oldOne.allUpdatesFlow.filter { updatesFilter(it) }.subscribeSafelyWithoutExceptions(this, block = asUpdateReceiver)
             }
         }
     } ?: { oldOne ->
         weakLaunch {
-            oldOne.allUpdatesFlow.subscribeSafelyWithoutExceptions(this, asUpdateReceiver)
+            oldOne.allUpdatesFlow.subscribeSafelyWithoutExceptions(this, block = asUpdateReceiver)
         }
     },
     stopOnCompletion,
diff --git a/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/TelegramBot.kt b/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/TelegramBot.kt
index aec72211c6..eb62df598a 100644
--- a/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/TelegramBot.kt
+++ b/tgbotapi.extensions.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/TelegramBot.kt
@@ -1,5 +1,6 @@
 package dev.inmo.tgbotapi.extensions.behaviour_builder
 
+import dev.inmo.micro_utils.coroutines.ExceptionHandler
 import dev.inmo.tgbotapi.bot.Ktor.KtorRequestsExecutorBuilder
 import dev.inmo.tgbotapi.bot.Ktor.telegramBot
 import dev.inmo.tgbotapi.bot.TelegramBot
@@ -28,6 +29,7 @@ suspend fun telegramBotWithBehaviour(
     scope: CoroutineScope? = null,
     apiUrl: String = telegramBotAPIDefaultUrl,
     builder: KtorRequestsExecutorBuilder.() -> Unit = {},
+    defaultExceptionsHandler: ExceptionHandler<Unit>? = null,
     block: BehaviourContextReceiver<Unit>
 ): TelegramBot = telegramBot(
     token,
@@ -37,6 +39,7 @@ suspend fun telegramBotWithBehaviour(
     buildBehaviour(
         scope ?: CoroutineScope(coroutineContext),
         flowsUpdatesFilter,
+        defaultExceptionsHandler,
         block
     )
 }
@@ -60,6 +63,7 @@ suspend fun telegramBotWithBehaviour(
     scope: CoroutineScope? = null,
     apiUrl: String = telegramBotAPIDefaultUrl,
     builder: KtorRequestsExecutorBuilder.() -> Unit = {},
+    defaultExceptionsHandler: ExceptionHandler<Unit>? = null,
     block: BehaviourContextReceiver<Unit>
 ): Pair<TelegramBot, Job> {
     return telegramBot(
@@ -69,6 +73,7 @@ suspend fun telegramBotWithBehaviour(
     ).let {
         it to it.buildBehaviour(
             scope ?: CoroutineScope(coroutineContext),
+            defaultExceptionsHandler,
             block
         )
     }