diff --git a/esm/client/1_business_connection_manager.d.ts b/esm/client/1_business_connection_manager.d.ts
index e84fb8e..282bf84 100644
--- a/esm/client/1_business_connection_manager.d.ts
+++ b/esm/client/1_business_connection_manager.d.ts
@@ -1,6 +1,10 @@
+import { enums, types } from "../2_tl.js";
 import { C } from "./0_types.js";
+export type BusinessConnectionManagerUpdate = types.UpdateBotBusinessConnect;
 export declare class BusinessConnectionManager {
     #private;
     constructor(c: C);
     getBusinessConnection(id: string): Promise<import("../3_types.js").BusinessConnection>;
+    static canHandleUpdate(update: enums.Update): update is BusinessConnectionManagerUpdate;
+    handleUpdate(update: BusinessConnectionManagerUpdate): Promise<void>;
 }
diff --git a/esm/client/1_business_connection_manager.js b/esm/client/1_business_connection_manager.js
index f18d8d2..f23dbde 100644
--- a/esm/client/1_business_connection_manager.js
+++ b/esm/client/1_business_connection_manager.js
@@ -30,5 +30,11 @@ export class BusinessConnectionManager {
             return await constructBusinessConnection(connection_, __classPrivateFieldGet(this, _BusinessConnectionManager_c, "f").getEntity);
         }
     }
+    static canHandleUpdate(update) {
+        return update instanceof types.UpdateBotBusinessConnect;
+    }
+    async handleUpdate(update) {
+        await __classPrivateFieldGet(this, _BusinessConnectionManager_c, "f").messageStorage.setBusinessConnection(update.connection.connection_id, update.connection);
+    }
 }
 _BusinessConnectionManager_c = new WeakMap();
diff --git a/esm/client/4_client.js b/esm/client/4_client.js
index bf67edd..f3a900e 100644
--- a/esm/client/4_client.js
+++ b/esm/client/4_client.js
@@ -2241,6 +2241,9 @@ _Client_handleCtxUpdate = async function _Client_handleCtxUpdate(update) {
             promises.push(__classPrivateFieldGet(this, _Client_instances, "m", _Client_handleCtxUpdate).call(this, upd));
         }
     }
+    if (BusinessConnectionManager.canHandleUpdate(update)) {
+        await __classPrivateFieldGet(this, _Client_businessConnectionManager, "f").handleUpdate(update);
+    }
     return () => Promise.all(promises);
 }, _Client_getMe = async function _Client_getMe() {
     if (__classPrivateFieldGet(this, _Client_lastGetMe, "f") != null) {
diff --git a/script/client/1_business_connection_manager.d.ts b/script/client/1_business_connection_manager.d.ts
index e84fb8e..282bf84 100644
--- a/script/client/1_business_connection_manager.d.ts
+++ b/script/client/1_business_connection_manager.d.ts
@@ -1,6 +1,10 @@
+import { enums, types } from "../2_tl.js";
 import { C } from "./0_types.js";
+export type BusinessConnectionManagerUpdate = types.UpdateBotBusinessConnect;
 export declare class BusinessConnectionManager {
     #private;
     constructor(c: C);
     getBusinessConnection(id: string): Promise<import("../3_types.js").BusinessConnection>;
+    static canHandleUpdate(update: enums.Update): update is BusinessConnectionManagerUpdate;
+    handleUpdate(update: BusinessConnectionManagerUpdate): Promise<void>;
 }
diff --git a/script/client/1_business_connection_manager.js b/script/client/1_business_connection_manager.js
index 4df9a5f..6306103 100644
--- a/script/client/1_business_connection_manager.js
+++ b/script/client/1_business_connection_manager.js
@@ -33,6 +33,12 @@ class BusinessConnectionManager {
             return await (0, _3_types_js_1.constructBusinessConnection)(connection_, __classPrivateFieldGet(this, _BusinessConnectionManager_c, "f").getEntity);
         }
     }
+    static canHandleUpdate(update) {
+        return update instanceof _2_tl_js_1.types.UpdateBotBusinessConnect;
+    }
+    async handleUpdate(update) {
+        await __classPrivateFieldGet(this, _BusinessConnectionManager_c, "f").messageStorage.setBusinessConnection(update.connection.connection_id, update.connection);
+    }
 }
 exports.BusinessConnectionManager = BusinessConnectionManager;
 _BusinessConnectionManager_c = new WeakMap();
diff --git a/script/client/4_client.js b/script/client/4_client.js
index 1c6f607..c3433a0 100644
--- a/script/client/4_client.js
+++ b/script/client/4_client.js
@@ -2246,6 +2246,9 @@ _Client_handleCtxUpdate = async function _Client_handleCtxUpdate(update) {
             promises.push(__classPrivateFieldGet(this, _Client_instances, "m", _Client_handleCtxUpdate).call(this, upd));
         }
     }
+    if (_1_business_connection_manager_js_1.BusinessConnectionManager.canHandleUpdate(update)) {
+        await __classPrivateFieldGet(this, _Client_businessConnectionManager, "f").handleUpdate(update);
+    }
     return () => Promise.all(promises);
 }, _Client_getMe = async function _Client_getMe() {
     if (__classPrivateFieldGet(this, _Client_lastGetMe, "f") != null) {