diff --git a/td/generate/scheme/td_api.tl b/td/generate/scheme/td_api.tl
index 44a3a086..5e7a7530 100644
--- a/td/generate/scheme/td_api.tl
+++ b/td/generate/scheme/td_api.tl
@@ -3503,6 +3503,9 @@ setChatDiscussionGroup chat_id:int53 discussion_chat_id:int53 = Ok;
 //@description Changes the location of a chat. Available only for some location-based supergroups, use supergroupFullInfo.can_set_location to check whether the method is allowed to use @chat_id Chat identifier @location New location for the chat; must be valid and not null
 setChatLocation chat_id:int53 location:chatLocation = Ok;
 
+//@description Changes the slow mode delay of a chat. Available only for supergroups; requires can_restrict_members rights @chat_id Chat identifier @slow_mode_delay New slow mode delay for the chat; must be one of 0, 10, 30, 60, 300, 900, 3600
+setChatSlowModeDelay chat_id:int53 slow_mode_delay:int32 = Ok;
+
 //@description Pins a message in a chat; requires can_pin_messages rights @chat_id Identifier of the chat @message_id Identifier of the new pinned message @disable_notification True, if there should be no notification about the pinned message
 pinChatMessage chat_id:int53 message_id:int53 disable_notification:Bool = Ok;
 
diff --git a/td/generate/scheme/td_api.tlo b/td/generate/scheme/td_api.tlo
index 687b597f..17df016e 100644
Binary files a/td/generate/scheme/td_api.tlo and b/td/generate/scheme/td_api.tlo differ
diff --git a/td/telegram/Td.cpp b/td/telegram/Td.cpp
index 8bc893fe..94ffa486 100644
--- a/td/telegram/Td.cpp
+++ b/td/telegram/Td.cpp
@@ -6069,6 +6069,13 @@ void Td::on_request(uint64 id, td_api::setChatLocation &request) {
                                           std::move(promise));
 }
 
+void Td::on_request(uint64 id, const td_api::setChatSlowModeDelay &request) {
+  CHECK_IS_USER();
+  CREATE_OK_REQUEST_PROMISE();
+  contacts_manager_->set_channel_slow_mode_delay(DialogId(request.chat_id_), request.slow_mode_delay_,
+                                                 std::move(promise));
+}
+
 void Td::on_request(uint64 id, const td_api::pinChatMessage &request) {
   CREATE_OK_REQUEST_PROMISE();
   messages_manager_->pin_dialog_message(DialogId(request.chat_id_), MessageId(request.message_id_),
diff --git a/td/telegram/Td.h b/td/telegram/Td.h
index bf63d9e3..2949d409 100644
--- a/td/telegram/Td.h
+++ b/td/telegram/Td.h
@@ -676,6 +676,8 @@ class Td final : public NetQueryCallback {
 
   void on_request(uint64 id, td_api::setChatLocation &request);
 
+  void on_request(uint64 id, const td_api::setChatSlowModeDelay &request);
+
   void on_request(uint64 id, const td_api::pinChatMessage &request);
 
   void on_request(uint64 id, const td_api::unpinChatMessage &request);
diff --git a/td/telegram/cli.cpp b/td/telegram/cli.cpp
index 1c6844e2..1488fb8e 100644
--- a/td/telegram/cli.cpp
+++ b/td/telegram/cli.cpp
@@ -3534,6 +3534,13 @@ class CliClient final : public Actor {
       std::tie(latitude, longitude) = split(args);
       send_request(td_api::make_object<td_api::setChatLocation>(
           as_chat_id(chat_id), td_api::make_object<td_api::chatLocation>(as_location(latitude, longitude), "address")));
+    } else if (op == "scsmd") {
+      string chat_id;
+      string slow_mode_delay;
+
+      std::tie(chat_id, slow_mode_delay) = split(args);
+      send_request(
+          td_api::make_object<td_api::setChatSlowModeDelay>(as_chat_id(chat_id), to_integer<int32>(slow_mode_delay)));
     } else if (op == "pcm" || op == "pcms") {
       string chat_id;
       string message_id;