diff --git a/typings/index.d.ts b/typings/index.d.ts
index 90eff1c31330..e55baea8f260 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -2631,7 +2631,7 @@ export class Util extends null {
   ): Promise<{ id: Snowflake; position: number }[]>;
   /** @deprecated This will be removed in the next major version. */
   public static splitMessage(text: string, options?: SplitOptions): string[];
-  public static resolveAutoArchiveMaxLimit(guild: Guild): number;
+  public static resolveAutoArchiveMaxLimit(guild: Guild): Exclude<ThreadAutoArchiveDuration, 60>;
 }
 
 export class Formatters extends null {
@@ -5757,7 +5757,7 @@ export type StageInstanceResolvable = StageInstance | Snowflake;
 
 export interface StartThreadOptions {
   name: string;
-  autoArchiveDuration?: ThreadAutoArchiveDuration;
+  autoArchiveDuration?: ThreadAutoArchiveDuration | 'MAX';
   reason?: string;
   rateLimitPerUser?: number;
 }
@@ -5903,7 +5903,7 @@ export interface ThreadCreateOptions<AllowedThreadType> extends StartThreadOptio
 export interface ThreadEditData {
   name?: string;
   archived?: boolean;
-  autoArchiveDuration?: ThreadAutoArchiveDuration;
+  autoArchiveDuration?: ThreadAutoArchiveDuration | 'MAX';
   rateLimitPerUser?: number;
   locked?: boolean;
   invitable?: boolean;