diff --git a/src/core/requests/mod.rs b/src/core/requests/mod.rs
index 5da1a761..665a8d36 100644
--- a/src/core/requests/mod.rs
+++ b/src/core/requests/mod.rs
@@ -18,9 +18,9 @@ pub trait Request<R: serde::de::DeserializeOwned> {
 #[derive(Debug, Serialize, From, PartialEq, Eq)]
 pub enum ChatId {
     /// chat identifier
-    Id(i32), // 32?
+    Id(i64),
     /// _channel_ username (in the format @channelusername)
-    ChannelUsername(String)
+    ChannelUsername(String),
 }
 
 pub mod get_me;
diff --git a/src/core/requests/send_message.rs b/src/core/requests/send_message.rs
index 12f6f16d..4c48dbb2 100644
--- a/src/core/requests/send_message.rs
+++ b/src/core/requests/send_message.rs
@@ -17,7 +17,7 @@ pub struct SendMessage {
     #[builder(default)]
     disable_notification: Option<bool>,
     #[builder(default)]
-    reply_to_message_id: Option<i32>,
+    reply_to_message_id: Option<i64>,
     #[builder(default)]
     reply_markup: Option<()>, // TODO: ReplyMarkup enum
 }