diff --git a/extensions/telegram/src/bot.ts b/extensions/telegram/src/bot.ts
index 554d5f185b3..ecec8b2f47f 100644
--- a/extensions/telegram/src/bot.ts
+++ b/extensions/telegram/src/bot.ts
@@ -491,11 +491,7 @@ export function createTelegramBot(opts: TelegramBotOptions) {
   // from ANY chat are tracked together — prevents infinite retry storms.
   const sendChatActionHandler = createTelegramSendChatActionHandler({
     sendChatActionFn: (chatId, action, threadParams) =>
-      bot.api.sendChatAction(
-        chatId,
-        action,
-        threadParams as Parameters<typeof bot.api.sendChatAction>[2],
-      ),
+      bot.api.sendChatAction(chatId, action, threadParams),
     logger: (message) => logVerbose(`telegram: ${message}`),
   });
 
diff --git a/extensions/telegram/src/sendchataction-401-backoff.ts b/extensions/telegram/src/sendchataction-401-backoff.ts
index 1db03e2ac22..d8b08492674 100644
--- a/extensions/telegram/src/sendchataction-401-backoff.ts
+++ b/extensions/telegram/src/sendchataction-401-backoff.ts
@@ -1,3 +1,4 @@
+import type { Bot } from "grammy";
 import {
   computeBackoff,
   sleepWithAbort,
@@ -19,11 +20,13 @@ type ChatAction =
   | "upload_video_note"
   | "choose_sticker";
 
+type TelegramSendChatActionParams = Parameters<Bot["api"]["sendChatAction"]>[2];
+
 type SendChatActionFn = (
   chatId: number | string,
   action: ChatAction,
-  threadParams?: unknown,
-) => Promise<unknown>;
+  threadParams?: TelegramSendChatActionParams,
+) => Promise<true>;
 
 export type TelegramSendChatActionHandler = {
   /**
@@ -33,7 +36,7 @@ export type TelegramSendChatActionHandler = {
   sendChatAction: (
     chatId: number | string,
     action: ChatAction,
-    threadParams?: unknown,
+    threadParams?: TelegramSendChatActionParams,
   ) => Promise<void>;
   isSuspended: () => boolean;
   reset: () => void;
@@ -85,7 +88,7 @@ export function createTelegramSendChatActionHandler({
   const sendChatAction = async (
     chatId: number | string,
     action: ChatAction,
-    threadParams?: unknown,
+    threadParams?: TelegramSendChatActionParams,
   ): Promise<void> => {
     if (suspended) {
       return;