diff --git a/telegram-bot-api/Client.cpp b/telegram-bot-api/Client.cpp
index 1a3a82e..e3c49e6 100644
--- a/telegram-bot-api/Client.cpp
+++ b/telegram-bot-api/Client.cpp
@@ -680,6 +680,20 @@ class Client::JsonReactionType final : public td::Jsonable {
   const td_api::ReactionType *reaction_type_;
 };
 
+class Client::JsonReactionCount final : public td::Jsonable {
+ public:
+  explicit JsonReactionCount(const td_api::messageReaction *message_reaction) : message_reaction_(message_reaction) {
+  }
+  void store(td::JsonValueScope *scope) const {
+    auto object = scope->enter_object();
+    object("type", JsonReactionType(message_reaction_->type_.get()));
+    object("total_count", message_reaction_->total_count_);
+  }
+
+ private:
+  const td_api::messageReaction *message_reaction_;
+};
+
 class Client::JsonChatPermissions final : public td::Jsonable {
  public:
   explicit JsonChatPermissions(const td_api::chatPermissions *chat_permissions) : chat_permissions_(chat_permissions) {
@@ -3606,6 +3620,25 @@ class Client::JsonMessageReactionUpdated final : public td::Jsonable {
   const Client *client_;
 };
 
+class Client::JsonMessageReactionCountUpdated final : public td::Jsonable {
+ public:
+  JsonMessageReactionCountUpdated(const td_api::updateMessageReactions *update, const Client *client)
+      : update_(update), client_(client) {
+  }
+  void store(td::JsonValueScope *scope) const {
+    auto object = scope->enter_object();
+    object("chat", JsonChat(update_->chat_id_, client_));
+    object("message_id", as_client_message_id(update_->message_id_));
+    object("date", update_->date_);
+    object("reactions",
+           td::json_array(update_->reactions_, [](const auto &reaction) { return JsonReactionCount(reaction.get()); }));
+  }
+
+ private:
+  const td_api::updateMessageReactions *update_;
+  const Client *client_;
+};
+
 class Client::JsonUpdateTypes final : public td::Jsonable {
  public:
   explicit JsonUpdateTypes(td::uint32 update_types) : update_types_(update_types) {
@@ -6875,6 +6908,9 @@ void Client::on_update(object_ptr<td_api::Object> result) {
     case td_api::updateMessageReaction::ID:
       add_update_message_reaction(move_object_as<td_api::updateMessageReaction>(result));
       break;
+    case td_api::updateMessageReactions::ID:
+      add_update_message_reaction_count(move_object_as<td_api::updateMessageReactions>(result));
+      break;
     case td_api::updateConnectionState::ID: {
       auto update = move_object_as<td_api::updateConnectionState>(result);
       if (update->state_->get_id() == td_api::connectionStateReady::ID) {
@@ -13114,6 +13150,8 @@ td::Slice Client::get_update_type_name(UpdateType update_type) {
       return td::Slice("removed_chat_boost");
     case UpdateType::MessageReaction:
       return td::Slice("message_reaction");
+    case UpdateType::MessageReactionCount:
+      return td::Slice("message_reaction_count");
     default:
       UNREACHABLE();
       return td::Slice();
@@ -13451,6 +13489,19 @@ void Client::add_update_message_reaction(object_ptr<td_api::updateMessageReactio
   }
 }
 
+void Client::add_update_message_reaction_count(object_ptr<td_api::updateMessageReactions> &&update) {
+  CHECK(update != nullptr);
+  auto left_time = update->date_ + 86400 - get_unix_time();
+  if (left_time > 0) {
+    auto webhook_queue_id = update->chat_id_ + (static_cast<int64>(9) << 33);
+    add_update(UpdateType::MessageReactionCount, JsonMessageReactionCountUpdated(update.get(), this), left_time,
+               webhook_queue_id);
+  } else {
+    LOG(DEBUG) << "Skip updateMessageReactions with date " << update->date_ << ", because current date is "
+               << get_unix_time();
+  }
+}
+
 td::int64 Client::choose_added_member_id(const td_api::messageChatAddMembers *message_add_members) const {
   CHECK(message_add_members != nullptr);
   for (auto &member_user_id : message_add_members->member_user_ids_) {
diff --git a/telegram-bot-api/Client.h b/telegram-bot-api/Client.h
index ab1f33e..6bcfa76 100644
--- a/telegram-bot-api/Client.h
+++ b/telegram-bot-api/Client.h
@@ -105,6 +105,7 @@ class Client final : public WebhookActor::Callback {
   class JsonUser;
   class JsonUsers;
   class JsonReactionType;
+  class JsonReactionCount;
   class JsonChatPermissions;
   class JsonChatPhotoInfo;
   class JsonChatLocation;
@@ -174,6 +175,7 @@ class Client final : public WebhookActor::Callback {
   class JsonForumTopicInfo;
   class JsonGameHighScore;
   class JsonMessageReactionUpdated;
+  class JsonMessageReactionCountUpdated;
   class JsonAddress;
   class JsonOrderInfo;
   class JsonSuccessfulPaymentBot;
@@ -1129,6 +1131,8 @@ class Client final : public WebhookActor::Callback {
 
   void add_update_message_reaction(object_ptr<td_api::updateMessageReaction> &&update);
 
+  void add_update_message_reaction_count(object_ptr<td_api::updateMessageReactions> &&update);
+
   // append only before Size
   enum class UpdateType : int32 {
     Message,
@@ -1150,6 +1154,7 @@ class Client final : public WebhookActor::Callback {
     ChatBoostUpdated,
     ChatBoostRemoved,
     MessageReaction,
+    MessageReactionCount,
     Size
   };
 
@@ -1179,10 +1184,11 @@ class Client final : public WebhookActor::Callback {
 
   bool have_message_access(int64 chat_id) const;
 
-  // by default ChatMember and MessageReaction updates are disabled
-  static constexpr td::uint32 DEFAULT_ALLOWED_UPDATE_TYPES = (1 << static_cast<int32>(UpdateType::Size)) - 1 -
-                                                             (1 << static_cast<int32>(UpdateType::ChatMember)) -
-                                                             (1 << static_cast<int32>(UpdateType::MessageReaction));
+  // by default ChatMember, MessageReaction, and MessageReactionCount updates are disabled
+  static constexpr td::uint32 DEFAULT_ALLOWED_UPDATE_TYPES =
+      (1 << static_cast<int32>(UpdateType::Size)) - 1 - (1 << static_cast<int32>(UpdateType::ChatMember)) -
+      (1 << static_cast<int32>(UpdateType::MessageReaction)) -
+      (1 << static_cast<int32>(UpdateType::MessageReactionCount));
 
   object_ptr<td_api::AuthorizationState> authorization_state_;
   bool was_authorized_ = false;