diff --git a/src/http/client.rs b/src/http/client.rs
index c5a0d6eb34e..e21d72ff9a3 100644
--- a/src/http/client.rs
+++ b/src/http/client.rs
@@ -2972,7 +2972,7 @@ impl Http {
     pub async fn get_channel_archived_public_threads(
         &self,
         channel_id: ChannelId,
-        before: Option<u64>,
+        before: Option<Timestamp>,
         limit: Option<u64>,
     ) -> Result<ThreadsData> {
         let mut params = ArrayVec::<_, 2>::new();
@@ -3000,7 +3000,7 @@ impl Http {
     pub async fn get_channel_archived_private_threads(
         &self,
         channel_id: ChannelId,
-        before: Option<u64>,
+        before: Option<Timestamp>,
         limit: Option<u64>,
     ) -> Result<ThreadsData> {
         let mut params = ArrayVec::<_, 2>::new();
@@ -3028,7 +3028,7 @@ impl Http {
     pub async fn get_channel_joined_archived_private_threads(
         &self,
         channel_id: ChannelId,
-        before: Option<u64>,
+        before: Option<ChannelId>,
         limit: Option<u64>,
     ) -> Result<ThreadsData> {
         let mut params = ArrayVec::<_, 2>::new();
diff --git a/src/model/channel/channel_id.rs b/src/model/channel/channel_id.rs
index ff77242ac6e..8b0a4ff7789 100644
--- a/src/model/channel/channel_id.rs
+++ b/src/model/channel/channel_id.rs
@@ -1032,7 +1032,7 @@ impl ChannelId {
     pub async fn get_archived_private_threads(
         self,
         http: impl AsRef<Http>,
-        before: Option<u64>,
+        before: Option<Timestamp>,
         limit: Option<u64>,
     ) -> Result<ThreadsData> {
         http.as_ref().get_channel_archived_private_threads(self, before, limit).await
@@ -1046,7 +1046,7 @@ impl ChannelId {
     pub async fn get_archived_public_threads(
         self,
         http: impl AsRef<Http>,
-        before: Option<u64>,
+        before: Option<Timestamp>,
         limit: Option<u64>,
     ) -> Result<ThreadsData> {
         http.as_ref().get_channel_archived_public_threads(self, before, limit).await
@@ -1060,7 +1060,7 @@ impl ChannelId {
     pub async fn get_joined_archived_private_threads(
         self,
         http: impl AsRef<Http>,
-        before: Option<u64>,
+        before: Option<ChannelId>,
         limit: Option<u64>,
     ) -> Result<ThreadsData> {
         http.as_ref().get_channel_joined_archived_private_threads(self, before, limit).await