diff --git a/deno/rest/v10/channel.ts b/deno/rest/v10/channel.ts
index 252858769..18b854a13 100644
--- a/deno/rest/v10/channel.ts
+++ b/deno/rest/v10/channel.ts
@@ -608,7 +608,7 @@ export interface RESTPostAPIChannelMessagesThreadsJSONBody {
 	 *
 	 * The 3 day and 7 day archive durations require the server to be boosted. The [guild features](https://discord.com/developers/docs/resources/guild#guild-object-guild-features) will indicate if a server is able to use those settings.
 	 */
-	auto_archive_duration: ThreadAutoArchiveDuration;
+	auto_archive_duration?: ThreadAutoArchiveDuration | undefined;
 	/**
 	 * Amount of seconds a user has to wait before sending another message (0-21600)
 	 */
diff --git a/deno/rest/v9/channel.ts b/deno/rest/v9/channel.ts
index 7ca8f06ce..a51b80ca3 100644
--- a/deno/rest/v9/channel.ts
+++ b/deno/rest/v9/channel.ts
@@ -622,7 +622,7 @@ export interface RESTPostAPIChannelMessagesThreadsJSONBody {
 	 *
 	 * The 3 day and 7 day archive durations require the server to be boosted. The [guild features](https://discord.com/developers/docs/resources/guild#guild-object-guild-features) will indicate if a server is able to use those settings.
 	 */
-	auto_archive_duration: ThreadAutoArchiveDuration;
+	auto_archive_duration?: ThreadAutoArchiveDuration | undefined;
 	/**
 	 * Amount of seconds a user has to wait before sending another message (0-21600)
 	 */
diff --git a/rest/v10/channel.ts b/rest/v10/channel.ts
index a16654834..56e569b2b 100644
--- a/rest/v10/channel.ts
+++ b/rest/v10/channel.ts
@@ -608,7 +608,7 @@ export interface RESTPostAPIChannelMessagesThreadsJSONBody {
 	 *
 	 * The 3 day and 7 day archive durations require the server to be boosted. The [guild features](https://discord.com/developers/docs/resources/guild#guild-object-guild-features) will indicate if a server is able to use those settings.
 	 */
-	auto_archive_duration: ThreadAutoArchiveDuration;
+	auto_archive_duration?: ThreadAutoArchiveDuration | undefined;
 	/**
 	 * Amount of seconds a user has to wait before sending another message (0-21600)
 	 */
diff --git a/rest/v9/channel.ts b/rest/v9/channel.ts
index 74e05e31f..713f7c3e3 100644
--- a/rest/v9/channel.ts
+++ b/rest/v9/channel.ts
@@ -622,7 +622,7 @@ export interface RESTPostAPIChannelMessagesThreadsJSONBody {
 	 *
 	 * The 3 day and 7 day archive durations require the server to be boosted. The [guild features](https://discord.com/developers/docs/resources/guild#guild-object-guild-features) will indicate if a server is able to use those settings.
 	 */
-	auto_archive_duration: ThreadAutoArchiveDuration;
+	auto_archive_duration?: ThreadAutoArchiveDuration | undefined;
 	/**
 	 * Amount of seconds a user has to wait before sending another message (0-21600)
 	 */