diff --git a/aiogram/dispatcher/dispatcher.py b/aiogram/dispatcher/dispatcher.py
index 58eeb1c8..ee793218 100644
--- a/aiogram/dispatcher/dispatcher.py
+++ b/aiogram/dispatcher/dispatcher.py
@@ -517,6 +517,7 @@ class Dispatcher(Router):
                 **kwargs,
             }
             await self.emit_startup(bots[-1], **workflow_data)
+            workflow_data.pop("bot")
             loggers.dispatcher.info("Start polling")
             try:
                 tasks: List[asyncio.Task[Any]] = [